I Ching, Yijing or Zhou Yi
"Oracle of the moon": © 2000 LiSe
What does it mean, 'inner' and 'outer trigram' (popup)
Thunder below Heaven: The power of Thunder to make things grow combined with the structure of Heaven causes all things to start at their own time and to grow into their own potential and shape. Thunder and Heaven create the abundance of nature. All creatures and plants follow their dao, they become what they are meant to be.
Ideogram of the hexagram name: the first (upper) character is a person whith a cut off or obstructed head, or exerting himself in vain against an obstacle: without, not. The second character is a woman and a sickle: false, reckless, rash, absurd, unreasonable, presumptuous, untrue, ignorant, stupid, foolish, wild, incoherent, disorderly, to harm, (enter into) a hiding place, an empty womb, barren. 'Not barren' is a description of lush nature, of everything living life to the fullest.
The 'Great Image' says: Below Heaven rolls Thunder, beings associate in innocence. The ancient kings made use of lush growth in accordance with the seasons to nurture the myriad beings.
Hex.25 is the contrast of 46, which is about making things happen step by step and with effort.
Hex.25 is about moving along with the flow of universe. Giving the powers of nature complete freedom and trust. Playing with abandon.