The inversion of reality to cancel it out.

This is a famous, or infamous, statement by Aleister Crowley that has been misinterpreted by Christians over the decades, "a) Let him (The Adept) learn to write backwards, with either hand. b) Let him learn to walk backwards. c) Let him constantly watch, if convenient, cinematograph films, and listen to phonograph records, reversed, and let him so accustom him self to these that they appear natural and appreciable as whole. d) Let him practice speaking backwards: thus for "I am He" let him say, "Eh ma I." e) Let him learn to read backwards. In this it is difficult to avoid cheating one's self, as an expert reader sees a sentence at a glance. Let his disciple read aloud to him backwards, slowly at first, then more quickly. f) Of his own ingenium, let him devise other methods." 

Christians have used this to suggest that Aleister Crowley was somehow the one who invented what is called Backward Masking where apparent words and statements mysteriously appear when a song is played backwards. The problem with that belief and that subject in general is that there is no technology that existed in the 1970s to create such a thing and there still isn't the technology to do that. Rather it is the brain itself that is responsible for that. Of course understanding how the brain accomplishes such a thing is beyond science's ability to understand, not that it seems to be interested in what is essentially a Christian conspiracy theory. It's possible that the forward and backward temporarily converge into one so that a forward lyric and backward lyric both become understandable.

Look at a frequency, both the up and down parts temporarily converge in the middle so that both essentially disappear before the line starts going the other way. In the infinity symbol both loops temporarily converge in the same place as well before inverting to the other side. The middle in both cases is where the convergence, also called the Singularity, occurs. Is it possible that when these backward statements occur in forward lyrics that there is a temporary Singularity occurring in the mind itself that science cannot explain? It isn't technology or neurons that are responsible for doing this but a wormhole opening up. 

One thing that is extremely emphasized in the occult is the silence that is mentioned on this page. The silence is basically what is in between and underneath all the noise that the physical world has to offer. It is essentially the canceled out state of the noise and its backward state. The Bible calls God the Word. What is this word exactly? It could be none other than the cancelled out state of all the noise that is in between all reality. Just like the middle holds together both loops of infinity, so too does the silence hold together all the noise of both up and down of the frequency.

What Aleister Crowley meant by this statement was that the adept should invert his reality so that it merges with his regular reality and both end up cancelling each other out. 

This is supported by another one of his quotes, "The sole source of energy is the Tao. Who may declare its nature? It is beyond Sense, yet all form is hidden within it. It is beyond Sense, yet all Perceptibles are hidden within it. It is beyond Sense, yet all Perceptibles are hidden within it. It is beyond Sense, yet all Being is hidden within it. This Being excites Perception, and the Word thereof. As it was in the beginning, is now, and ever shall be, its Name((The. Zero contains all possibilities, for it may be written 0= X (-X), where X is anything soever and -X its opposite. However complex X may be, it is always to be cancelled by its -X. Thus the universe is always potentially anything and everything, yet actually Nothing.)) operateth continuously, causing all to flow in the cycle of Change, which is Love and Beauty. How do I know this? By my comprehension of the Tao."

The forward is the plus and the backward is the minus and both merge into one and become none. That creates a wormhole to another reality that always exists in between all the polar opposites of this world. This is what Aleister Crowley was trying to get at.

The best way to invert reality to cancel out this reality is by using the black mirror, which is one of the most powerful occult devices used all throughout history throughout many different civilisations. The secret of its effectiveness is in the fact that mirrors invert reality. The world in the mirror is a perfect image of the real one, where everything has just as much depth as this one, but where everything is backwards. There's a reason why mirrors have so many superstitions surrounding them, because they essentially capture reality. The thing that a black mirror does is that is makes this captured inversion of reality fade to black. It essentially draws the curtain on the world and its reversed counterpart so that makes the adept staring into lose focus on the world. The black mirror is in between both worlds and the in between reality is what accesses the higher world like a wormhole. It is essentially the balance between both worlds, like the center of the infinity loop.

The middle in between all realities and polar opposites is where the hidden world exists and where it can be revealed if one can train his mind to focus on it.

This concept was explained in a lot of detail on The Axis of the Universe page. 

In Alchemy, Hermeticism, Gnosticism and other religions like Hinduism and the ancient Greek religion, Androgyny was quite a common belief. In Alchemy one of the main goals is the unite the male and female and to give birth to the Philosophical Child during an important stage of the process. This is from The Complete Idiot's Guide to Alchemy, "The primary symbol of successful fermentation is a curious two-headed human figure known as the Rebis, which is from the Latin phrase res bina, meaning “a double thing.” The Rebis is usually depicted as a winged hermaphrodite with a male head on its right and a female head on its left and represents the Philosopher’s Child resulting from the union of the King and Queen that took place during the conjunction phase." In Gnosticism the thing that caused the Fall of Man was the separation of Eve from Adam according to the Gospel of Philip, "When Eve was still in Adam death did not exist. When she was separated from him death came into being. If he enters again and attains his former self, death will be no more." "If the woman had not separated from the man, she should not die with the man. His separation became the beginning of death. Because of this Christ came to repair the separation which was from the beginning and again unite the two, and to give life to those who died as a result of the separation and unite them." 

The child is basically the in between of the two polar opposites that are inverted to each other. The child was something that was extremely emphasized by the Gnostics and this was covered in a lot of detail on The Child page. The child was the ideal state of being because it is the balance between the flesh inversions. 

This information helps to explain this statement from the Gospel of Thomas that is hard to understand for the uninitiated, "When you make the two into one, and when you make the inner like the outer and the outer like the inner, and the upper like the lower, and when you make male and female into a single one, so that the male will not be male nor the female be female, when you make eyes in place of an eye, a hand in place of a hand, a foot in place of a foot, an image in place of an image, then you will enter [the kingdom]."

The last part where Jesus Christ was saying make the various body parts in place of each other is saying that make one side of the flesh like the other side of the flesh to become what is in between them both. As that passage said, both male and female are images of what is in between both images. That is the doorway to the other world. The Book of Genesis itself describes male and female as being images of God, implying that male and female aren't the real thing, since male and female are just an image of something greater, "So God created mankind in his own image, in the image of God he created them; male and female he created them." God is not above these two images, but in between them and that is where God can be found.

The Gnostic book called The Thunder, The Perfect Mind is basically about becoming everything by becoming the one side of everything and then becoming the other side of everything so that the individual becomes the nothing.