Svatmarama, Hatha Yoga Pradipika ~ When the breath wanders the mind also is unsteady. But when the breath is calmed the mind too will be still, and the yogi achieves long life. Therefore, one should learn to control the breath.
Swallow: symbolizes hope, loyalty and new love. Swallow tattoos can often symbolize the rebirth of life itself. You can tattoo a swallow for good luck and protection, and also to portray good intention, strength and agility.