The first way is the stilling of the mind, because it is very often the activity of the mind which produces impurities. The stilling of the mind removes impurities from it; it is like tuning the mind to its natural pitch. The mind can be likened to a pool of water: when the water in the pool is undisturbed, the reflection is clear; and so it is with the mind. If the mind is disturbed, one does not receive intuition, inspiration, clearly in it. Once the mind is still it takes a clear reflection, as the pool of water does when the water in the pool is still.