We should always remember that meditation is the cultivation and practice of nonattachment. The Buddha taught only the middle way, and mindfulness is nothing but the middle way. It is neither an intense practice nor can it be done without effort. It must be done with balance. Properly done, it is neither detached pushing away nor egoistic clinging. Be very careful about sitting down with ideas like, "I am sitting, I am watching, I am breathing, I am meditating, I am this, that is mine."

--Mindfulness With Breathing, by Buddhadasa Bhikkhu

Bodhidharma On Elephant