The Interior Castle
Let us imagine our soul as a castle, one made out of a single diamond or translucent crystal, and there are many rooms in this castle.… Think carefully over this and realize that the soul of a good person is nothing less than paradise, in which, as God tells us himself, he finds delight. Imagine how beautiful that dwelling must be to delight a King so mighty, so wise, so pure and abounding in goodness.
I can find nothing whatever to compare in beauty with the human soul in its vast capacity. No matter how powerful our intellect may be, we can no more comprehend this than we can comprehend God Himself; for according to his own word, he made us in his image and likeness …
The human soul is a creature, of course, and there is therefore as much difference between it and God as between creature and Creator, but the fact that His Majesty says it is made in his own image means that we can hardly form any idea of its great dignity and beauty.… This castle, as I have said, is made up of many rooms; some above, some below and others at either side; and in the midst of them is that chamber which is the inmost heart of the castle where secret intimacies are exchanged between God and the soul.
Saint Teresa, The Wisdom of Saint Teresa of Avila, compiled by Ruth Burrows