Two things make our delight pure. One is turning of sensuality to the skill [intelligence]; for when any is turning to delight of his five wits [senses], all soon uncleanness enters into his soul. Another is, that the skill meekly be used in ghostly things, as in meditations and orisons, and looking in holy books. Therefore the delight that was naught of unordained stirring, and meekly has stirring in Christ, and in which sensuality is turned to skill, all set and used to God, makes a man's soul in rest and secureness and aye to dwell in good hope, and to be paid with all God's gifts, without grumbling or heaviness of thought.
Richard Rolle: Desire and Delight.