to help it in all their might. All fiends be furious when thou thus dost, and try for to defeat it in all that they can. All men living in earth be wonderfully holpen of this work, thou wottest not how. Yea, the souls in purgatory be eased of their pain by virtue of this work. Thyself art cleansed and made virtuous by no work so much. And yet it is the lightest work of all, when a soul is helped with grace in sensible list, and soonest done. But else it is hard, and wonderful to thee for to do.
Let not, therefore, but travail therein till thou feel list. For at the first time when thou dost it, thou findest but a darkness; and as it were a cloud of unknowing, thou knowest not what, saving that thou feelest in thy will a naked intent unto God. This darkness and this cloud is, howsoever thou dost, betwixt thee and thy God, and letteth thee that thou mayest neither see Him clearly by light of understanding in thy reason, nor feel Him in sweetness of love in thine affection.