There are three different rhythms of breath which have influence upon the mind. Slow breath gives tranquility to the mind; and to all the creative faculties of mind, scope is given by this rhythm. Moderate breath helps the mind to continue its activities. If one wanted to make out a plan of work or wished to accomplish a certain work, the slow activity of breath spoken of above would not be helpful; although for poetry or music the slow activity of the breath is more helpful. But quickness in the rhythm of the breath produces confusion, though it gives force to physical activities. One can run well or swim well when the breath is in a fairly quick rhythm. When the rhythm of the breath is too quick it brings confusion to the mind and exhaustion to the body.