Yi Jing, Oracle of the Moon

Zhèn-Dui, Thunder-Lake
    

  When Zhèn activates Duì, Thunder brings out Lake's feature of beneficial rain and Lake makes Thunder's work bloom. Together they create lush vegetation. But don't exaggerate, make your true intentions known without embellishing or rushing them, or all your efforts will become no more than lush blossoms, beautiful to behold but distracting from the essence.
  Thunder wakes up seeds, Lake's tender, persuasive care gives them a home and makes them grow. Small beginnings grow into generations of life, one after the other in endless succession. Thunder and Lake awaken motivation, which is the first stirring of life.
  The Heaven-line is yin and brings rain. The Earth line is yang and shows her beauty. Life is beneficient and looks bright. This is a time to celebrate nature and health.

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.