According to Krishnamacharya , practice and knowledge must always go together. He used to say, practice without right knowledge of theory is blind. This is also because without right knowledge, one can mindfully do a wrong practice.
A. G. MohanThe mind is like a river. The thoughts are like the various droplets of water. We are submerged in that water. Stay on the bank and watch your mind.
A. G. Mohan