Meditation.
Buddha's students followed closely, careful not to miss a single word; they listened ever so intently, as he regaled them with the sermon of the bird. "My children," he said, "you mustn't forget what happens when one falls in love with the nightingale's song, they clip their wings, surrounding them in flightless sorrow then foolishly question what is wrong." "Everything is impermanent, as you should already know, thus, we must admire the beauty of our surroundings with joy and gratitude. Yet, take heed, and do not seek to possess that which you do not already own, for you may permanently alter its state or even worse, affect its mood."