I Ching, Yijing or Zhou Yi
"Oracle of the moon": © 2000 LiSe
Xùn with Zhèn is a particularly favorable combination. One knows how to secure one's place in society to glory and splendor. Every action is without opposition. Thunder renews things but always from below, from the Earth, where the seeds and spirits reside. Thunder wakes up what is viable, plows under what is not.
Xùn makes your Dao strong and focused, giving Zhen a clear direction for its energy. Imagine your goal and it will pull you along: with Xun and Zhen you renew and improve yourself and your environment.
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.