14 Therefore when the soul has obtained to see, that is, to apprehend God, let us see whether those three things are still necessary to her. Why should Faith be necessary to the soul, when she now sees? Or Hope, when she already grasps? But from Charity not only is nothing diminished, but rather it receives large increase. For when the soul has once seen that unique and unfalsified Beauty, she will love it the more, and unless she shall with great love have fastened her gaze thereon, nor any way declined from the view, she will not be able to abide in that most blessed vision.
But while the soul is in this body, even though she most fully sees, that is, apprehends God; yet, because the bodily senses still have their proper effect, if they have no prevalency to mislead, yet they are not without a certain power to call in doubt, therefore that may be called Faith whereby these dispositions are resisted, and the opposing truth affirmed. Moreover, in this life, although the soul is already blessed in the apprehension of God; yet, because she endures many irksome pains of the body, she has occasion of hope that after death all these incommodities will have ceased to be.
Therefore neither does Hope, so long as she is in this life, desert the soul. But when after this life she shall have wholly collected herself in God, Charity remains whereby she is retained there. For neither can she be said to have Faith that those things are true, when she is solicited by no interruption of falsities; nor does anything remain for her to hope, whereas she securely possesses the whole. Three things therefore pertain to the soul, that she be sane, that she behold, that she see. And other three, Faith, Hope, Charity, for the first and second of those three conditions are always necessary: for the third in this life all; after this life, Charity alone.
Source: Soliloquies (New Advent)