I am still using David Richo's book: When Mary Becomes Cosmic.
He says that joy can be a quality of any experience. He then gives an example: "Speaking metaphorically, we can say that a rose faces autumn with a joy equal to that felt in spring. She knows she will be reborn though not as this same individual rose. Her joy is precisely in the fact that she is not attached to an identity in any limited or literal way. She has let go of attachment to a separate identity in favor of everlasting oneness. Such letting go is the essence of jubilation." That is enough for reflection today.