Prana means breath, vital energy, life force. Ayama is lengthening or widening through control. If we don’t have sufficient energy we cannot do anything in life. If the brain does not receive proper oxygen, we don’t have the mental energy. Pranayma provides energy for both body and mind.
There are various types of Pranayama, consisting of breathing exercises that develop the life-force, promote energy, calm senses and emotions, awake the mind.