Hatha yoga ethics, diet, cleansing, pranayama (breathing exercises), meditation and a system for spiritual development of the yogi. The Hatha yoga texts place major emphasis on "mitahara", which connotes "measured diet" or "moderate eating". For example, sections 1.58 to 1.63 and 2.14 of the "Hatha Yoga Pradipika" and sections 5.16 to 5.32 of "Gheranda samhita" discuss the importance of proper diet to the body. They link the food one eats and one's eating habits to balancing the body and to gaining most benefits from the practice of Hatha yoga. Eating, states "Gheranda samhita", is a form of a devotional act to the
Aparoksha from which unity of existence is derived. This knowledge is gained by establishing a "guru-shishya sambandha" (Guru-shishya tradition) with a teacher who has already experienced that kind of knowledge (Aparoksanubhuti); the karma or acts required to be done, after gain of "Aparoksha jnana" is "Vidya-karma" which consists in "sravana" (hearing of srutis), "manana" (reflection) and "nididhyasana" (meditation on Brahman). Aparoksha is "savikalpa jnana" (knowledge) when one re-recognizes the non-dual nature of the ever-realized Self (Tat Tvam Asi), it is the immediate knowledge gained through the "pramanas"; practice of "Dhyana" (meditation) removes all "vikalpas" (varied thoughts) and leads to "nirvikalpa" or