When one has a religious experience, what is “true” is only that one has had that experience, not that its contents convey anything about reality.

There are certain truths that occurs to us, which we cannot convey in words, but requires a personal experience to grasp more vividly.

It is a great adventure to contemplate the universe, beyond man, to contemplate what it would be like without man, as it was in a great part of its long history and as it is in a great majority of places. When this objective view is finally attained, and the mystery and majesty of matter are fully appreciated, to then turn the objective eye back on man viewed as matter, to view life as part of this universal mystery of greatest depth, is to sense an experience which is very rare, and very exciting. It usually ends in laughter and a delight in the futility of trying to understand what this atom in the universe is, this thing — atoms with curiosity — that looks at itself and wonders why it wonders. Well, these scientific views end in awe and mystery, lost at the edge in uncertainty, but they appear to be so deep and so impressive that the theory that it is all arranged as a stage for God to watch man's struggle for good and evil seems inadequate.

Some will tell me that I have just described a religious experience. Very well, you may call it what you will. Then, in that language I would say that the young man's religious experience is of such a kind that he finds the religion of his church inadequate to describe, to encompass that kind of experience. The God of the church isn't big enough.

I believe in the incomprehensibility of God.

Do you not think that there are things which you cannot understand, and yet which are; that some people see things that others cannot?

To sense that behind anything that can be experienced there is a something that our mind cannot grasp and whose beauty and sublimity reaches us only indirectly and as a feeble reflection, this is religiousness. In this sense I am religious.

Let's worship Divinity, but understand the divinity we worship is beyond our comprehension.

The most beautiful and deepest experience a man can have is the sense of the mysterious. It is the underlying principle of religion as well as all serious endeavor in art and science. He who never had this experience seems to me, if not dead, then at least blind. To sense that behind anything that can be experienced there is a something that our mind cannot grasp and whose beauty and sublimity reaches us only indirectly and as a feeble reflection, this is religiousness.
In this sense I am religious. To me it suffices to wonder at these secrets and to attempt humbly to grasp with my mind a mere image of the lofty structure of all that there is.

There are many truths of which the full meaning cannot be realised, until personal experience has brought it home

I know that the evidence for genuine religious experience is incontrovertible, but it's not explicable. So I don't want to explain it away. I want to pull back from that and leave it as a fact and a mystery, and then we're going to look at this from a rational perspective, and say that the initial formulation of the idea of God was an attempt to abstract out the ideal and to consider it as an abstraction outside its instantiation. And that's good enough. It's an amazing thing if it's true. But I don't want to throw the baby out with the bathwater.

If religious liberty includes, as it must, the right to communicate such experiences to others, it seems to me an impossible task for juries to separate fancied ones from real ones, dreams from happenings, and hallucinations from true clairvoyance. Such experiences, like some tones and colors, have existence for one, but none at all for another. They cannot be verified to the minds of those whose field of consciousness does not include religious insight. When one comes to trial which turns on any aspect of religious belief or representation, unbelievers among his judges are likely not to understand, and are almost certain not to believe, him.

There are, then, three sorts of religious experiences. The ancient rites, which are essentially propitiatory. The mysteries, which purge the soul and allow us to glimpse eternity. And philosophy, which attempts to define not only the material world but to suggest practical ways to the good life, as well as attempting to synthesize (as Iamblichos does so beautifully) all true religion in a single comprehensive system.

If the truth of religious doctrines is dependent on an inner experience that bears witness to the truth, what is one to make of the many people who do not have that experience?

Religion in terms of “personal experience is an independent functioning of the human mind, something unique, possessing and autonomous character. It is something inward and personal which unifies all values and organizes all experiences. It is the reaction to the whole of man to the whole of reality. It may be called spiritual life, as distinct from a merely intellectual or moral or aesthetic activity or a combination of them.