The Hatha Yoga Pradipika.

The Hatha Yoga Pradipika is a classical text on Hatha Yoga, written in the 15th century by the Indian sage Svatmarama and is considered the root and origin of all yoga. The text focuses on physical postures and purification practices.

The Hatha Yoga Pradipika is divided into four chapters, each covering a different aspect of Hatha Yoga practice. 

The first chapter focuses on the purification practices, such as the cleansing of the body and the practice of breathing exercises (pranayama). 

The second chapter covers the postures (asanas), and provides detailed instructions on their performance and benefits. 

The third chapter covers the practice of mudras and bandhas, which are techniques used to control the flow of energy in the body. 

The fourth chapter covers meditation and the attainment of spiritual liberation.

The Hatha Yoga Pradipika emphasises the importance of a balanced practice, combining physical postures, breath control, and meditation. It also emphasises the importance of a spiritual connection and the role of a teacher in guiding the practitioner towards self-realisation.

The Hatha Yoga Pradipika is a comprehensive guide to Hatha Yoga and provides a foundation for the physical and spiritual practices of this branch of yoga. It continues to be an important resource for yoga practitioners and teachers, and provides a valuable insight into the ancient wisdom of Hatha Yoga.