Hatha Yoga Pradipika gives the following variant titles, gleaned from different manuscript colophons: "Haṭhayogapradīpikā", "Haṭhapradīpikā", "Haṭhapradī", "Hath-Pradipika". The "Hatha Yoga Pradīpikā" was composed by Svātmārāma in the 15th century CE. as a compilation of the earlier hatha yoga texts. Svātmārāma incorporates older Sanskrit concepts into his popular synthesis. In the "Hatha Yoga Pradīpikā," Svātmārāma introduces his system as preparatory stage for physical purification that the body practices for higher meditation or yoga. It is based on asanas (postures) and pranayama (breathing techniques). "Hatha Yoga Pradīpikā" lists thirty-five earlier Haṭha Yoga masters (Skt. siddha), including Ādi Nātha, Matsyendranātha and Gorakṣanātha. The work consists of
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