This nourishment, or essential energy, is called chi. Chi flows first to our higher nature, and through it to our bodies. When we are true to ourselves, chi flows without resistance or blockage.
Anthony defines chi as the essential spiritual nourishment channeled from the Cosmos through the higher self to the body, identifying blockage of chi with self-betrayal and misalignment with higher truth.
, A Guide to the I Ching, 1988thesis