Yoga nidra slows the wavelengths in your mind as you enter a sleep-like state. The experience often starts with sensing the body and mindfully breathing to trigger the relaxation response in your body. ... Yoga nidra trains your mind and body for this relaxation process so you can reach a deeper state of sleep Yoga Nidra is a guided meditation, taking a journey of subconsciousness through deeper level of awareness into state of clarity inside stillness and peace.