I Ching, Yijing or Zhou Yi
"Oracle of the moon": © 2000 LiSe
彖曰:晉,進也。 明出地上, 順而麗乎大明, 柔進而上行。
When Fire rises from the Earth a new day begins, everything is fresh and undefined. Fire has a strong desire to make things clear, to bring order and beauty and knowledge. Being also the sun, it knows the secret of light and dark - of using the time of rest to brighten the day even more - but also of using every opportunity, even tiny ones, to create something valuable.
Fire needs to be nourished in order to spread light and warmth. Earth supports Fire with her endless energy and other resources. They work together to fill the world with an abundance of creatures and lush vegetation.
This is the short answer - click for the complete one (with 'your' helpers).
About the 3 lines of the trigrams and the 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.