All conditioned things turn out to be unreliable and subject to change. Recognising and accepting the truth of impermanence and the insecurity of our fluid existence allows us to let go of holding and resistance, and release our limited sense of self into the flow of life.
There is a direct relationship between our acceptance of the moment, or lack of, and our happiness, or lack of. Being aware of our level of acceptance is the foundation for happiness and gives us the space in which to make decisions about our speech and actions in the world.
Sylvia Boorstein and Donald Rothberg explore in dialogue lovingkindness and its relationships with muddita (appreciative joy), gratitude, and equanimity. Mature lovingkindness integrates all of these qualities.