There are some things which are in a sense infinite. Loving someone doesn’t use up your reserves of love. Rather the opposite in fact.
I’ve just finished reading Charles de Lint’s Spiritwalk which is really rather good. In it he has one of his characters say:
“Our affection for others is the one thing that is an infinite resource. We can never care too much, or for too many.”
But the other thing we have in unlimited amounts is imagination.
I believe it is a writer’s duty to connect those two.