I Ching, Yijing or Zhou Yi
"Oracle of the moon": © 2000 LiSe
Yi Jing, Oracle of the Moon

What are the potential and qualities of this situation?
Kūn, Space. Her image is Earth. Kūn is the embracing mother. She is nurturing, receiving, and focused on results. She is the place one calls home, one's territory. One obtains good fortune. The Earth trigram is like a womb, rich in possibilities, she can nurture things into concrete existence, like a crop, creatures, tangible resources like money, return on investment, but also dreams and visions that seem unattainable.
She accepts everything, organic or inorganic, and works with it. Proceeds it, nourishes it, arranges all creatures and objects around each other.
Many of her creations will perish, many will thrive, but the earth goes on. She has no empty spaces, no end or start, no goal or limit. She is strict and that way creates a balance that restores itself over and over. Things that strive to be perfect. Living creatures seeking health, water free to run, and sunshine free to enter. She fills even the darkest places with organic and inorganic creations.
土命 Tǔ Mìng, earth name/destiny: born in an earth year or having a local
or popular name - a lasting link to Earth.
What is the subject, intention or hope of your question? And what is your power in this?
Duì, 'cheerful talk' or 'barter'. Its attribute is the marsh or Lake. It is the source of the flow of water and the flow of persuasive words. Duì is social, she is the trigram of gaining fame and fortune, but only when ambition has no hold. One needs balance between one’s own wishes and the rules of right conduct.
The old character 'Dui' is a picture of a person with wide open mouth: 'open', 'to open' or 'to loosen'. The words of Duì are compelling, persuasive, they open the minds of others.
Duì is the spirit of pure autumn, which is a good time for results but not for the start of something new. Like the autumn harvest time, Dui is contained within borders, it has limits. It has variable beginnings but a definite end. If you need to finish something, then do it now.
What do you want or need to do, what can you truly do, or what will fate unfold in this situation?
When Kūn changes to Duì, the nurturing care of the compliant earth meets the social exchange of the lake with its ranks. It is the connection with yore and death, with the ancestors and your own past. It is the instinct to belong together and to take responsibility for people and for actions. This
creates people who can serve others without ego. They are the overseer who cares for his people, the servant who admires his employer, the actor who identifies with his role.
It is the foundation of empathy, of accepting the other as he or she is.
Redress wrongs before it is too late, they will return and haunt you in the dark.
??? But don't erase yourself for too long or you will become invisible. To be successful, you also need to be a leader, well informed, wide awake and making your voice heard.
Kūn and Duì are the 'origin' of hexagram 19. First trigram is the upper trigram (called '悔 huǐ, regret' or 'consult': the problem that makes you consult the oracle). Second trigram is the lower or inner trigram (called '真 zhēn, true': the answer of the oracle for this situation: the advice how to deal with it).

The top line is generally where the initiative comes from, but here it is yin, both in- and outside. It might be that you asked about a matter where the initiative or action doesn’t come from you. Yin is compliant and absorbing and occasionally accepts too easily, but it keeps the excess of dominance and lack of empathy of the Heaven-line in balance. A yin Heaven-line may bring rain: blessings – concrete sustainable solutions. Or this might be a time to simply enjoy things the way they are.
Yin will reinforce you to process ideas and projects and to continue working on them. Yin is not aiming for success but for a job well done. It is nurturing and attractive, but there will be no output yet, for the time being your plans ask input, like ideas, energy, maybe money, and keep doing so for the time being.
When plans include the work, they will thrive.
变初六为震, 为雷, 雷出地中, 奋达疾速, 威声
三三远赫, 有寒木生春之意, 万汇咸亨, 品物流行, 发荣茂盛, 无适不宜。
When the bottom line changes, Kun activates Zhen, thunder comes from the earth. It comes energetically and quickly. Its prestige extends far and wide.
Earth with Thunder is a great tree that benefits others. It can grow by depleting the Earth, but by growing, everything else can benefit from it. The yang energy is reborn, signifying the beginning of progress with correct principles, the expulsion of regret and remorse, and the gathering of auspiciousness.
Everything on earth is effortless, all living beings spread out, fame abounds. There is nothing that would not be appropriate.
復生 ¹fùshēng, come to life again, regenerate. It is like resistant trees, cold and bare in winter but announcing spring early: metaphor for high moral integrity.
This line activates Thunder's yang in you, while surrounded by Earth's yin. Yin absorbs material, efforts and resources to make things grow. With Thunder's energy and stimulation, everything will start to shine, to give back, but yang can also deplete itself. Like the tree in autumn you need to save your strength or refuel now and then and return in a new spring.
General: The bottom line is the subject, the 'field' where you find the cause and in which you pour the resources for your initiative: space, material, problems or opportunities, helpers and other people or food for thought. But here you also meet your problems, fears, hopes and expectations.
The subject is yang, but your question means you are entering a situation of yin potential. After collecting the material for concrete results, it is now the task or time to display them and then prosperity will gather. The subject will reveal itself, it will grow brighter and give joy.
If things don't meet expectations, this is the right time to get new inspiration. Usually, yang at the bottom is positive, you find a balance between yang and yin that will help your efforts, or pave the way to finish your work, making it visible.
The timing of this change of the subject. (Time can refer to the seasons of the year, the hours of a day, the progress of an undertaking, a state of mind - anything that has a beginning, a peak, a decline, and an end. See "Timing")
春分以后, 夏至以前, 得之尤佳, 或为宰辅, 或为宪台, 名位禄寿之兼隆。
冬而得此,遇而不遇,举动必乖,恐成灾管,盖雷行失令违时,则不利矣。
Spring-summer: For those who get this after the vernal equinox (21/3) but before the Summer Solstice (21/6), this is especially good. He may become prime minister or imperial censor. His position and fame know luck, a doubly long and prosperous life.
Summer-autumn: after the solstice opportunities diminish steadily. Take care not to give up, small steps are still possible. Outside, there may not be much luck, inside it is important to stay true to your principles. Don’t allow others to use you against your own wellbeing.
In winter, when not getting the opportunities you need, your activities are in danger of being different from what is appropriate; fear leads to disasters. Retreat from action, because this is the movement of Thunder that loses its power by going against the season, which is unfavorable.
When you have the drive to show, but you are in yin surroundings, it will bring visible increase but also insecurity and danger. Don't forget the background or the inside of what looks so perfect. Yin is the foundation, without its support, yang has no substance. Like Water, you have to navigate through rough terrain, fill in what seems impossible, rise above and over obstacles, while also inspiring everyone who has anything to do with your venture. When you have the right connection with all around, like a good leader has with heaven and earth. they will follow your courage and trust your judgment.
The timing of this outcome: (Time can refer to the seasons of the year, the hours of a day, the progress of an undertaking, a state of mind - anything that has a beginning, a peak, a decline, and an end. See "Timing")
春夏之时, 土被阳气而内攻, 浮虚陷害而怨生, 恩中必有崩毁之乖。
秋得水而退, 土气不浮, 可谓少亨, 疑非大安, 尤防不测之咎, 惟不致伤耳。
冬得水干, 培植焦熬, 终多费力, 不若无之, 终为美也。
冬至以后, 是谓化工, 主劳役凋败之余, 有偶然横发之机。
Spring and Summer: At the time of spring and summer, the earth is attacked from within by Yang Qi, it is eroded into emptiness and slandered, and so injustice arises, goodness collapses.
Autumn: In autumn the water recedes, the Qi of the earth is no longer eroded, this can be called a small improvement. Probably no great peace, protect yourself above all from misfortune caused by unexpected events, only then will you remain free from injury.
In the Winter the water dries up and the drought grows; at the end much effort will have to be made, but if that effort is there, the end will definitely be beautiful.
After the winter solstice it is called Hua Gong. Water is at home in this season, the last vestiges of necessary labor disappear, and there is the spontaneity and freedom of nature.
An activated Yang line is generally bright and giving.Yang is great for enthusiasm and spreading joy or success, for structure, but don’t expect solid results.
An activated Yin line generally does the work. Yin's creativity absorbs and converts resources into tangible results. It brings peace, beauty, and a sense of security.
The initiative (top line or Heaven line) is the intention or focus. Your ideas, plans, or what you want, or something that happens and you want to influence it or use its possibilities.
In this answer the line is stationary Yin: this is a good time to work on ideas. Usually, yin at the top is very positive and creative, there is balance between yang and yin, ideas and their possibilities can become reality.
The subject (bottom line or Earth line) is the 'reality' of your question or the ‘field’ of action. A situation or person, resources, materials, facts.
In this answer the line is activated
Yang: the subject is clear and generous and responds to the initiative. Usually yang at the bottom is positive, there is balance between yang and yin.
The outcome (middle line or Man Line) is what you or others or fate cause to happen 'between Heaven and Earth'. It is the outcome of this question. It can be physical or mental or both. If this is a yes/no question, then yang means yes, yin means no or 'not yet'. Both can be good or bad, depending on the question.
In this answer the line is activated
Yang: if you need increase, this is a great line. Your efforts will show results. Often not of the concrete kind, but joy, satisfaction and structure have their own value.
About the 3 lines of the trigrams and the spirit helpers:
Each line, active or at rest, summons one of the 8 trigrams as a Helper. For an activated line: telling you what you need - or about a problem area or something to avoid.
For a stationary line: this is what you already have or do or what you don't need. Often we just need a reminder of our abilities. Or it could be what you wish or fear - but will not happen.
Active lines are the helpers to change things, they listen to intentions, which can come from you, surroundings, or fate. Stationary helpers are part of the core meaning, they are your soul talking, but they also see the impossibilities or what is lacking at the moment. They reinforce the overall power of a reading.
Helper for the initiative: Gen, Mountain with his constancy, his ability to make things endure, is lacking here or not needed. Yin remains Yin.
Helper for the subject: Zhen, Thunder with his energy and stimulation and quick actions
Helper for the outcome: Kan, Water, with his direction and focus, his courage to take risks and his talent to give things shape
But when things are not satisfying, it might be that one or more helpers don't help enough - or try too hard. Or maybe you don't listen carefully enough.
This oracle is NOT according to the Neigua Chuwaili, a chapter of the Heluo Lishu, which is meant to be read and used in Chinese astrology. But I found beautiful texts about the trigrams in the Neigua Chuwaili and borrowed them for this trigram oracle.
For those who are interested in the Heluo Lishu see the course by Harmen Mesker.
See also "Yijing astrologie" by Harmen Mesker (Dutch).
The guide to calculating your birth hexagram.
For divining with trigrams, see the video by Tin Yat Dragon