Anapanasati, mindfulness of breathing, is a core meditation practice in Theravada, Tiantai and Chan traditions of Buddhism as well as a part of many mindfulness programs. In both ancient and modern times, anapanasati by itself is likely the most widely used Buddhist method for contemplating bodily phenomena.

Just breathe normally and pay attention to your breathing process, one breath at a time. Keep your awareness focused but be gentle; you should have an attitude of discovering and making friends with yourself. Acknowledge the thoughts that pop into your mind without engaging them. Simply observe them and let go.

People can meditate on their own or in groups. Meditating in a group - perhaps at a retreat called a sesshin or in a meditation room or zendo - has the benefit of reminding a person that they are both part of a larger Buddhist community, and part of the larger community of beings of every species.