The Hatha Yoga Pradipika (Translated)

One whose mind is neither asleep nor awake, free of remembering and forgetting, doesn’t perish or flourish. That one is indeed liberated.

The yogi in samadhi knows neither heat nor cold, misery nor happiness, honor nor dishonor.

One succeeds in all Yogas through energetic practice—even if one is young, old, very old, sick, or weak.

The mind dissolves from abandoning knowable things.

The entire universe is just a creation of thought. The play of the mind is just a creation of thought. Abandon the mind which is only thought.

The knowable, the known, and knowledge—all are said to be the mind. When knowledge and the knowable are lost, there is no second path.17

There is only one seed,13 pervading creation; one mudra, Khechari; one God, independent; one state, manonmani.

Daily practice increases the stomach’s fire, so the practitioner should have plenty of food. If he eats too little food, the fire burns him instantly.

indicators of success in Hatha: leanness of body, clearness of face, distinctness of nada, very clear eyes, health, victory over bindu, lighting of the digestive fire, and purity of the nadis.

the ten mudras which together destroy old age and death: Mahamudra, Mahabandha, Mahavedha, Khechari, Uddiyana, Mulabandha, Jalandharabandha, Viparitakarani, Vajroli, and Shaktichalana.