Fixity of attention depends on slow breathing; quick or uneven breaths are an inevitable accompaniment of harmful emotional states: fear, lust, anger. The restless monkey breathes at the rate of 32 times a minute, in contrast to man’s average of 18 times. The elephant, tortoise, snake and other animals noted for their longevity have a respiratory rate which is less than man’s. The tortoise, for instance, who may attain the age of 300 years, breathes only four times per minute.
