To find Buddha, you have to see your nature. Whoever sees his nature is a Buddha. If you don’t see your nature, invoking buddhas, reciting sutras, making offerings, and keeping precepts are all useless. Invoking buddhas results in good karma, reciting sutras results in a good memory, keeping precepts results in good rebirth, and making offerings results in future blessings—but no Buddha.
Bodhidharma (c. 440 AD - 528 AD)
Source: The Zen Teaching of Bodhidharma: A Bilingual Edition
Please open your eyes now, but keep attention in the inner energy field of the body 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.
Source: The Power of Now : A Guide to Spiritual Enlightenment, Pages: 113