This principle of the subtle body is very, very closely related to the doctrine of karma because the actions that we perform are not performed with the physical body. Here you will have to change your entire world scheme.
abhayaṃ naḥ karaty antarikṣam abhayaṃ
dyāvā-pṛthivī ubhe ime
abhayaṃ paścād abhayaṃ purastāduttarād
It's a very simple trick. Very difficult to master because you have doubts.
I'll tell you one more secret of success in life.
More than 36 years ago I wrote in one of my books that there are three brands of yoga: