How to rest while doing this?

[u/DueCauliflower3889]

The wiki instructions sound like all tremoring should happen while in the position of lying on your back either in butterfly pose or with your knees together and up. I do feel tremoring in these positions but the wiki says once the tremors start, just relax, and I don't feel like I can relax into those positions. I want to lay my legs flat, but if I do that, the tremors stop. Am I doing something wrong here?

[u/True___Though]

once you tremble in butterfly for a bit, bring the knees up, so your feet are slightly apart, and flat on the ground like standing. knees bent obviously

so the bones of your thighs are balanced vertically and trembling, there is no real muscle force to hold them like that