Compassion is the keen awareness of the interdependence of all things.
Surely it is the maxim of loving-kindness: Do not unto others that you would not have them do unto you.
You only tasted the water. I tasted the gift. The water was simply the container for an act of loving-kindness and nothing could be sweeter.
To reteach a thing its loveliness is the nature of metta. Through lovingkindness, everyone & everything can flower again from within.
Loving kindness is the spirit of friendship toward yourself and others.
Loving-kindness is the better part of goodness.