Whenever we ask, “What is love?” it’s usually because a) we’re unsure if a certain special someone really loves us, or b) because a certain special someone just accused us of not really loving them.
When we are truly engaged in giving and receiving love, we don’t ponder such philosophical questions. It’s only when something is lacking that we begin to analyze and contemplate what that thing actually is. For example, nobody sits down to a full meal and asks, “What is a pastrami sandwich?”