What is mind? This is a very interesting question. Human being perceives the external world through five sense organs. These organs are nothing but the well- made instruments only. In human system ‘one force’ is constantly working behind these instruments and ‘this force’ through five instruments takes the details of the external world inside and forms a thought and stores it and then in this way infinite thoughts get generated. Thoughts flow and get stored inside. This force along with the flow of thoughts and the stored thoughts is called the ‘Mind’.

In short, mind means the flow of thoughts. It is just like a river. A river means the flow of water in a particular channel. The water in the river is continuously flowing. When the flow of water stops, the river is no more in existence.

Mind has two important functions: one is concentration and the other is to store thoughts and recall them when required, called memory, ‘swayamev tanantam Yati, svayamev pinatam yati’ is the wonderful quality of mind. It means mind can increase and decrease its speed at will and it can focus and defocus at will. Mind is working at four layers, i.e. Conscious (wakeful state), Sub-conscious (dream state), unconscious (sleep state) and super conscious (trancendental state).