Yogi: In the morning sit, the mind was way too sleepy to maintain the awareness. I switched from sitting on the chair to the floor and the mind brightened up.

Sayadaw: Yes, you need to change your state of mind – if you cannot change the mind, then you have to change your posture or surrounding. Only then the mind can change and you can wake up and continue to be aware. Otherwise, you’re wasting your time.

Make it a habit to change the posture or surrounding whenever the mind has no strength to practice, when you cannot rely on your understanding and effort to change your state of mind.