Yagna creates energy, energy creates consciousness, awareness. Heightened awareness brings you close to the reality and the reality is a witness.
To realize that everything is happening you need heightened awareness. And to bring about heightened awareness you have to increase the prana.
Prana can be increased through:
- Fasting, fresh food
- Pranayamas, Kriya, meditation
- Cold water baths
- Total exhaustion, not letting sleep take over
- Emotional peaks
- Presence of the Master
- Singing and chanting
- Giving without a givership, service without a doership
All of these together is Yagna.