Patanjali Yoga Sutra – Samadhi Pada- By Controlling Prana(1.34)
By Controlling Prana
1.34. Pracchardanavidharan abyam va pranasya|
- Pracchardana-expiration or rechaka
- Vidharanabyam-holding, kumbhaka
- Va-or
- Pranasya-of breath
Or by expiration and retention of breath (one can control the mind).