According to Osho, in deep relaxation the mental body falls silent and the astral body—made of light and beyond gravitation—can slip slightly out of the physical, producing feelings of uplift, floating, and even seeing guiding hands. A flexible ‘silver cord’ at the navel keeps you connected, and simple awareness or intention returns you safely. Don’t control; relax, open your eyes if needed, and surrender to existence.
When you’re very calm, your light-like inner body may float while your physical body rests, so you feel lifted or see things, but a ‘silver cord’ keeps you safe and you can come back just by wanting to.