The feeling of your inner body is formless, limitless, and unfathomable. You can always go into it more deeply. If you cannot feel very much at this stage, pay attention to whatever you can feel. Perhaps there is just a slight tingling in your hands or feet. That's good enough for the moment. Just focus on the feeling. Your body is coming alive. Later, we will practice some more. Please open your eyes now, but keep some attention in the inner energy field of the body even as you look around the room. The inner body lies at the threshold between your form identity and your essence identity, your true nature. Never lose touch with it.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment