You might ask: what profit does one derive from it? If it is profitable to rest at night after a whole day's work, so it is profitable to turn one's mind from this world of variety in order to rest it and to give it another experience, which belongs to it, which is its own, which it needs. It is this experience which is attained by the meditative process. A person who is able to think and not able to forget, a person who is able to speak but not able to keep silent, a person who is able to move and not able to keep still, a person who is able to cry and not able to laugh - that person does not know mastery. It is like having one hand, it is like standing on one foot. To have complete experience of life one must be able to act and to take repose, one must be able to think, and one must be able to keep silent.