Young love is a flame very pretty often very hot and fierce but still only light and flickering. The love of the older and disciplined heart is as coals deep-burning unquenchable.

Jealousy is cruel as the grave: the coals thereof are coals of fire.

Love is like a friendship caught on fire. In the beginning a flame very pretty often hot and fierce but still only light and flickering. As love grows older our hearts mature and our love becomes as coals deep-burning and unquenchable.