Don’t follow the energy during the sit because direction is a concept. 

[Yogi’s note: Stay with the awareness.]

The energy will go this way and that way; slowly, the body follows and starts to rotate.

[Yogi’s note: Sayadaw, however, also encourages qigong/yoga/aerobic exercise to develop a sense of whole-body awareness, just not follow the qi during the sit. (SUT Spirit Rock Retreat 2015 - Group A Session 1 Q&A (39:38-42:17)]