The Gheranda Samhita is a text on yoga that describes over 100 yoga practices classified into categories like kriyas, asanas, mudras, and pranayama. It presents yoga as a gradual process moving from physical practices to spiritual practices through psychological techniques. The text is a dialogue between the teacher Gheranda and student Chandkapali and covers topics like cleansing practices, 32 recommended asanas, 25 mudras, withdrawing the senses, proper pranayama, different types of meditation, and the sixfold path of samadhi.