We do not doubt, that the inward religious experience in different individuals may receive some modification, more or less, from the natural character. It will appear differently in John the Baptist and John the Disciple; it will appear differently in Stephen, in Peter, in Paul. But the difference will exist in the modifications and not in the essence of the thing; in that which is outward and incidental, rather than in that, which is internal and substantial. But in all cases of true holiness without exception; there must be, and there is the image of Christ at the bottom. In all cases in which the work of God is carried to its completion, the soul has become an "Infant Jesus;" and like its prototype, the Jesus of Nazareth and the Cross, it will grow in "wisdom, and in stature, and in favor with God and with man."
Such Christians and such Christianity will have an effect upon the world. Those, who are formed upon this divine model, not only have a noble lineage; but they bear in themselves the impress and the inscription of a true nobility. They are the tree, mentioned by the Psalmist, which is "planted by the rivers of water;" not stinted and dwarfish, as too many are, who bear the name of Christ; not smitten with rust and eaten with the worm, but sound alike in the body, the blossom, and the fruit; not crooked, knotted, and unsymmetrical, but free, expansive, and proportional. Wherever they go, the world recognizes their character, without the requisite of a formal proclamation. The image of Jesus, the divinity of the heart, is so written upon the whole outward life, that they are an "epistle, known and read of all men."
— edited from The Interior or Hidden Life (1844) Part 2, Chapter 13.