Become aware of your natural breath, become aware of your natural and spontaneous breath that moves in and out of your body without any effort. The natural breath flows in through both nostrils. Notice the feeling of the breath as it comes in and out of your nostrils. There is a sense of coolness as you inhale the breath. Follow this feeling into your nose, your sinuses, the back of your throat, into your lungs. There is as sense of warmth as you exhale the breath. Feel this warmth on your upper lip as you breathe out.