In inviting sentient beings as guests, the bodhisattva, the practitioner in the Mahayana, has a constant sense of the impermanence of the relationship—the guest is going to leave. So we view this as an opportune time, and there is constant appreciation. Our guests come. We entertain them and relate with them. Afterward, the guests thank us, we say good-bye, and we go back to running our home. There is a sense of the preciousness and the impermanence of the relationship, a sense of that relationship being extremely special.
~ Chogyam Trungpa