"Words, no matter whether they are vocalized and made into sounds or remain unspoken as thoughts, can cast an almost hypnotic spell upon you. You easily lose yourself in them, become hypnotized into implicitly believing that when you have attached a word to something, you know what it is. You have only covered up the mystery with a label. Everything, a bird, a tree, even a simple stone, and certainly a human being, is ultimately unknowable. This is because it has unfathomable depth. All we can perceive, experience, think about, is the surface layer of reality, less than the tip of an iceberg."
The depth of everything is a mystery, as Tolle notes, a mystery that is only obscured - or worse ignored - by our labeling it. The ultimate mysteries, the mystery of man and of God, are hidden deep within our own depths, and it is only the person who is willing to probe such inner depths who will ever come close to the source of these mysteries.-- Eckhart Tolle --
("A New Earth," page 25.)
The great theologian, Paul Tillich puts it this way:
"The wisdom of all ages and of all continents speaks about the road to our depth. It has been described in innumerably different ways. But all those who have been concerned - mystics and priests, poets and philosophers, simple people and educated - with that road through confession, lonely self-scrutiny, internal or external catastrophes, prayer, contemplation, have witnessed to the same experience. They have found they are not what what they believed themselves to be, even after a deeper level had appeared to them below the vanishing surface. That deeper level itself became surface, when a still deeper level was discovered, this happening again and again, as long as their lives, as long as they kept on the road to their depth. . . .
The name of this infinite and inexhaustible depth and ground of all being is God. That depth is what the word God means. . . . For if you know that God means depth, you know much about him. You cannot then call yourself an atheist or an unbeliever. For you cannot think or say: Life has no depth! Life itself is shallow. If you could say this in complete seriousness, you would be an atheist; but otherwise you are not. He who knows about depth knows about God."
[Paul Tillich, "The Shaking of the Foundations," Scribners, 1948, pp. 56-57.]