According to Osho, the instant the subtle body leaves the physical body, nature’s usual harmony is disturbed—the event is “beyond nature,” so everything becomes disorderly. To survive this shock, one must rigorously prepare the body—‘steel-like’—through Hatha Yoga disciplines, asanas, mudras, and pranayama, which stabilize energies and create resilience for such an otherwise destabilizing, potentially dangerous occurrence.
When your subtle self steps out, everything inside and around you loses balance, so you need a trained, strong body and breath to keep steady.