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The Adipurana states that the supreme penance, which is attained through yoga and meditation, is called Yoga Nirvana. This is achieved through intense effort and devotion. (176)
One should first purify the body and make it suitable for Sallekhana, then gradually weaken it by abstaining from food and other pleasures. (180)
Before taking the vow of renunciation, one should cultivate the thought of attaining the state of a "Bhavyatma" (a soul destined for liberation), abandoning all desires for life and fear of death. This is called Yoga Nirvana. (181)
One should renounce attachment and aversion, and abandon all doubts about attaining liberation. One should also give up the notion of "mine" with regard to things that are not the self. (182)
One should contemplate, "I am not the body, nor the mind, nor the speech, nor the cause of these three." One should not be troubled by these three and cultivate the thought of their distinctness. (183)
One should contemplate, "I am alone, I have no one, and I belong to no one." One should cultivate this thought of oneness with a generous heart. (184)
One should contemplate Yoga Nirvana, the state of eternal and infinite bliss, and focus on it with the mind, as if it were the highest goal in the world. This is how a yogi achieves Yoga Nirvana. (185)
This is the thirty-first stage of Yoga Nirvana.
After this, the yogi, renouncing all food and the body, should strive for the attainment of Yoga Nirvana. (186)
One who has developed a deep respect for the ultimate goal of liberation, who has renounced attachment to the body, and whose intellect is pure, should contemplate the mind, speech, and body as distinct from the self. (187)
One should focus the mind on the feet of the five supreme beings (Pancha Parameshthis) and dedicate oneself to the practice of Yoga Nirvana at the end of life. (188)
Yoga is the state of Samadhi (deep meditation), and Nirvana is the bliss that arises from it. Yoga Nirvana is the means to attain these desired states. (189)
This is the thirty-second stage of Yoga Nirvana. (190)