Thirty Minor Upanishads
Chapters
Thirty Minor Upanishads: 23. Yogaṭaṭṭva...

"Now I shall proceed to describe yoga to you. Yoga is divided into many kinds on account of its actions: (viz.,) Manṭrayoga, Layayoga, Hathayoga, and Rājayoga. There are four states common to all these: (viz.,) Ārambha, Ghata, Parichaya, and Nishpaṭṭi. O Brahmā, I shall describe these to you. Listen attentively. One should practise the Manṭra along with its māṭrikās (proper intonations of the sounds) and others for a period of twelve years; then he gradually obtains wisdom along with the siḍḍhis, (such as) aṇimā, etc. Persons of weak intellect who are the least qualified for yoga practise this. The (second) Laya-yoga tends towards the absorption of the chiṭṭa and is described in myriads of ways; (one of which is)—one should contemplate upon the Lord who is without parts (even) while walking, sitting, sleeping, or eating. This is called Laya-yoga. Now hear (the description of) Hatha-yoga. This yoga is said to possess (the following) eight subservients, yama (forbearance), niyama (religious observance), āsana