I will quote from the treatise, "The True Christian's Love To The Unseen Christ"-
3. How Christ manifests Himself unto them that love Him.
(1.) Christ here, in this world, manifests Himself but in part and darkly. The soul is not now capable of the fullest and clearest manifestation of Christ. This is a happiness reserved for the other world, First John 3:2 "Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know, that when He shall appear we shall be like Him; for we shall see Him as He is." John 17:24, "Father, I will that they also whom Thou hast given Me, be with Me where I am; that they may behold My glory which Thou has given Me." It is hereafter that Christ's disciples shall be perfectly like Christ, and shall have a perfect manifestation of Christ, that they shall see Him as He is. It is hereafter that they shall behold His glory. The luster and brightness of Christ's glory is so great that, should He now let forth the beams thereof upon them, it would dazzle and amaze them; it would strike them blind. Yea, it would strike them dead. There is need, because of their weakness, that Christ should keep a veil on His face when He makes discovery of Himself. They cannot now bear the full manifestation of Christ, therefore Christ reveals Himself but in part. As the Queen of Sheba said, concerning Solomon's wisdom and prosperity, First Kings 10;6-7, "It was a true report that I heard in mine own land, of thy acts and thy wisdom: howbeit, I believed not the words, until I came and mine eyes had seen it: and behold the half was not told me; thy wisdom and prosperity exceedeth the fame thereof."
It is not the one half which Christ's disciples now hear, or can in this world discern, of their Master's excellencies. It has not now entered into their hearts to conceive what beauties, and glories, and most admirable perfections there are hidden in their Beloved. Not only Christ's love, but also Christ's loveliness passes their knowledge. There are such dimensions of most wonderful glory in Christ's person as infinitely transcend the capacity of the most elevated minds fully to comprehend. Christ manifests Himself truly to them that love Him, yet is it but partly, and that but a little part. It is but darkly by the beams of a more obscure light. First Corinthians 13:9-12, "For we know in part, and we prophecy in part. But when that which is perfect is come, then that which is in part shall be done away. When I was a child, I spake as a child; but when I became a man, I put away childish things. For now we see through a glass darkly; but then face to face; now I know in part; but then shall I know, even, also as I am known."" pg. 104,105 Thomas Vincent