The rhythmic breath helps the mind to be clear. Breath breaks the congestion which in the head produces confusion, and in the heart depression, which covers the thoughts of others from one's perception, even from one's own intuition. A thought is better conveyed to another through breath than by speech, for a feeling put into words becomes half-dead. Feeling in its own sphere is fully living and when conveyed from there through the breath it reaches the mind to which it is sent.