The document provides information about the Ashtanga Vinyasa yoga system including:
1. It traces the lineage of the system from Vamana to T. Krishnamacharya to K. Pattabhi Jois who was the teacher of the system.
2. It describes the key components of Ashtanga practice including vinyasas, ujjayi breathing, bandhas, and dristis.
3. It summarizes the eight limbs of yoga according to Patanjali with a focus on how they are developed through Ashtanga practice.