The Nature of God

Yea, there is That which is the End-of-understanding, the "That" which thou must understand with the flower of the mind. For should’st thou turn thy mind inwards on It, and understand It as understanding “something,” thou shalt not understand It. For that there is a power of the mind’s prime that shineth forth in all directions, flashing with intellectual rays. Yet, in good sooth, thou should’st not strive with vehemence to understand that End-of-understanding, nor even with the wide-extended flame of wide-extended-mind that measures all things—except that End-of-under-standing only. Indeed, there is no need of strain in understanding this; but thou should’st have the vision of thy soul in purity, turned from aught else, so as to make thy mind empty of all things else, attentive to that End, in order that thou mayest learn that End-of-understanding; for It subsists beyond the mind. 

- Chaldean Oracles

The Tao that can be spoken is not the eternal Tao

The name that can be named is not the eternal name

The nameless is the origin of Heaven and Earth

The named is the mother of myriad things

Thus, constantly free of desire

One observes its wonders

Constantly filled with desire

One observes its manifestations

These two emerge together but differ in name

The unity is said to be the mystery

Mystery of mysteries, the door to all wonders

- Tao Te Ching, Ch 1

“He is the First, indestructible, eternal, ingenerable, impartible, entirely unlike aught else; 

Disposer of all beauty, unbribable, of all the good the Best, of all the wisest the Most Wise; 

the Father of good-rule and righteousness is He as well; self-taught, and natural; 

perfect, and wise; the sole Discoverer of sacred nature-lore.”

 - attributed by Eusebius to Zoroaster

That which cannot be expressed by speech, but by which speech is expressed—That alone know as Brahman and not that which people here worship. That which cannot be apprehended by the mind, but by which, they say, the mind is apprehended—That alone know as Brahman and not that which people here worship. That which cannot be perceived by the eye, but by which the eye is perceived—That alone know as Brahman and not that which people here worship. That which cannot he heard by the ear, but by which the hearing is perceived—That alone know as Brahman and not that which people here worship. - Kena Upanishad 1.5-8

"Brahman that is immediate and direct —the Self that is within all." 

"You cannot see That which is the Seer of seeing; you cannot hear That which is the Hearer of hearing; you cannot think of That which is the Thinker of thought; you cannot know That which is the Knower of knowledge. This is your Self, that is within all; everything else but This is perishable." - Br. Upanishad 3.4.2

Oh, Great Spirit,

whose voice I hear in the winds

and whose breath gives life to all the world, hear me.

I am small and weak.

I need your strength and wisdom.

Let me walk in beauty and make my eyes

ever behold the red and purple sunset.

Make my hands respect the things you have made

and my ears sharp to hear your voice.

Make me wise so that I may understand

the things you have taught my people.

Let me learn the lessons you have hidden

in every leaf and rock.

I seek strength, not to be superior to my brother,

but to fight my greatest enemy - myself.

Make me always ready to come to you

with clean hands and straight eyes,

so when life fades, as the fading sunset,

my spirit will come to you

without shame.

- Chief Yellow Lark of the Lakota Indians