There is a logical fallacy known as an “argument by authority” which has the form:  “Person X agrees with me, and he’s an expert, therefore I must be right.”  Knowing that this is a fallacious method of defending an idea, I’m going to do it anyway 🙂 .  I’m going to quote from some well-regarded and well-known authors and mystics throughout the history of western civilization.  The source of some of these quotes may surprise you.

We know God by unknowing, by a manner of uniting with God that exceeds the compass of our minds, when the mind recedes from all things and then leaves even itself and is united with the super-resplendent rays of the Divinity…

St. Thomas Aquinas

God became man so that man might become God.

Saint Athanasius

My being is God, not by simple participation, but by true transformation.

Saint Catherine of Genoa

…being transformed in God, they will live their life of God, and not their own life, and yet it will be their own life, for the life of God will be their own life”…”as there is no way in which the soul can grow but in becoming in a manner equal to [God], for this reason only is He pleased with our love.  Hence the soul, because of its perfect love, is called the bride of the Son of God, which signifies equality with him.

St. John of the Cross

I said to my soul, be still, and let the dark come upon you, which shall be the darkness of God.

T.S. Elliot

In one quarter of an hour I saw and knew more than if I had been many years together at University.  For I saw and knew the being of all things, the Byss and the Abyss, and the eternal generation of the holy Trinity, the descent and original of the world and of all creatures through the divine wisdom.

St. Ignace de Loyola

Thus does God, when he raises a soul to union with himself, suspend the natural action of all her faculties.  She neither sees, hears, nor understands, so long as she is united with God.  But this time is always short, and it seems even shorter than it is.  God establishes himself in the interior of this soul in such a way, that when she returns to herself, it is wholly impossible for her to doubt that she has been in God, and God in her.

St. Teresa

In the heaven that receives most of its light I have been, and have seen things which he who descends from there above neither knows how or is able to recount.

Dante

Swiftly arose and spread around me the peace and knowledge that pass all the argument of the earth, And I know the hand of God is the promise of my own, And I know that the spirit of God is the brother of my own, And that all the men ever born are also my brothers and the women sisters and lovers…Man or woman is as good as God and [there] is no God any more divine than yourself…Divine am I – inside and out.

Walt Whitman

I am not ashamed, afraid or averse to tell you what ought to be told – that I am under the direction of messengers from heaven, daily and nightly.  But the nature of such things is not, as some suppose, without trouble or care.

William Blake

The union of the soul with God is its second birth, and therein consists man’s immortality and freedom.

Spinoza

Moreover, something is or seems, That touches me with mystic gleams, Like glimpses of forgotten dreams – Of something felt, like something here; of something done, I know not where; Such as no language may declare.

Alfred Lord Tennyson

I live, yet not I, but Christ liveth in me.  Only when I become as nothing can God enter in and no difference between his life and mine remain outstanding … Let this mind be in you which was also in Christ Jesus.

St. Paul

The eye with which I see God is the eye with which he sees me.

Meister Eckhart

God is your being and in him you are what you are.

Anonymous author of The Cloud of Unknowing

Into this pervading genius we pass, forgetting and forgotten, and thenceforth each is all, in God.  There is no higher, no deeper, no other, than the life in which we are founded.  The One remains, the many change and pass; and each and every one of us is the one that remains.

Benjamin Paul Blood

Emptied of Self he is to be filled with Christ… God is present; he is somehow here; he is in me and around me; he is dwelling in my heart; he is the very core of everything that is; I am like a sponge in the great sea which is God.

Father William Johnson, SJ

Trying to see God is like trying to see your own eyes, for he is closer to us than we are to ourselves.

Alan Watts

I have to point out that I have lost the specific references for these quotations. I have every reason to believe that they are authentic and accurate.