The Mind's nature is that of energy
The mind can be considered a kind of energy. It's the same as the sun, wind, flowing water, electricity and so on; it moves. The body is the material part which is fixed and concrete. The mind is the spiritual part which is moving. We use different natural energies in our daily life. They serve us. Fire helps us to cook and to warm our homes. Water is essential for health and hygene. Wind ventilates rooms, houses, and machines. But when there is too much energy, it can also cause problems. Too much water becomes a flood. Too much wind becomes a storm. Too much fire is clearly trouble also. It is the same as our mind. In normal daily life everything looks calm or acceptable.
But in a possible yet unexpected situation we can be troubled with our mind. Our mind is sometimes angry, unsatisfied, worried, or worse. Once we can't control it, it can hurt us.