Mind is the main equipment, it connects all senses and work organs and make them function synergistically.

In the body mind can be understood by its functions, as it can not be seen. Keeping focused at the task, raising questions, looking at the task from different angles, deciding goal, deciding to fulfil the task. These are the five functions of the mind.

Strengthening the mind is possible by observing certain rules, by meditation, and by devotion.

Mind loses its strength by getting involved.