718. All who are of sound mind have an endless capacity for receiving wisdom from the Lord, that is, for increasing the number of truths that constitute their wisdom. They also have a similarly endless capacity for receiving love, that is, of bearing more fruit in the form of good feelings and actions that constitute their love. This perpetual bearing of more good fruit and therefore of love, and this perpetual increase of truths and therefore of wisdom, is something that is experienced by angels, and also by people who are becoming angels.
The Lord is love itself and wisdom itself; therefore we are endowed with an endless capacity for uniting ourselves to the Lord and the Lord to ourselves. Nevertheless, because we are finite, his actual divinity cannot become an integral part of us; it can only make contact with us and affect us. For an example by way of illustration, the light of the sun cannot become part of the substance of our eye, and a sound in the air cannot become part of the substance of our ear. The light and sound can only impinge on our eyes and ears and give us the ability to see and hear. We are not life itself the way the Lord was, even in his humanity (John 5:26); we are vessels for receiving life. Life itself cannot become an integral part of us, but it can have contact with us and affect us. I have added these points to help you understand in exactly what way the Lord and his redemption are fully present in the Holy Supper.
