In today's FBA Dharmabyte, "What is Gratitude?", Sangharakshita reflects on the Buddha's achievement of Enlightenment, drawing our attention to an often overlooked feature of this great event - the Buddha's expression of gratitude to the tree that sheltered him. A timely look at ways to cultivate this essential positive emotion. This is an excerpt from the talk Looking at the Bodhi Tree given in 1999.