@MM1988 enlightenment isn't the brain, it has barely anything to do with the brain.
Your entire premise is wrong, you think the brain exists. Where's your proof? Have you noticed that all empirical evidence is 'inside' the brain? I mean all evidence goes through your eyes or ears or whatever not. And it does that with everyone, biology scientists, neuroscientists. You're playing with fire assuming the brain exists. 
You're looking at this screen right now to read this are you not? Are you actually looking at a screen, or are you looking at a hallucination made by the brain. According to science, due to light transferring to the brain, you're not looking at a screen but a bunch of light put together. You're looking at electric impulses in the brain. 
We don't actually know scientifically if the world exists. We just know how brain impulses work, and patterns around that. And these brain patterns are inside this hallucination. Think about it. A concept is an impulse in the brain, so a concept about the concept about an impulse in the brain is also an impulse. Its circular and a strange loop. 
 
There is no brain, or if there is there's no way to access that information.
Enlightenment doesn't touch the brain, its awareness, its everything, matter, air, its all of it at once. And spiritual practices change awareness, not the brain. So if you remove a part of someones brain like a memory, that memory will be removed, experientially 1st perspective speaking, the content will be different, but the realization will still exist. If you want to remove the realization, you need to get some sort of awareness bomb and explode that. 
You wait. People are gonna begin to realize that consciousness isn't apart of the brain, but apart of everything. Its an underlying fabric beyond time and space that has the potential to change and become more aware of itself. While the brain (and all of matter) interacts with this fabric, one does not affect the other. 

The brain isn't as simple as poking a needle into it to destroy memories. Scientists have been on a search for a one-to-one correlation between memories and brain cells and they have yet to find it. They found one instance of a cell that fired only when shown images of Jennifer Aniston and it made a huge splash in the literature. But that is not the only cell that responds to images of her, thus it still doesn't count as one-to-one functioning.
Indeed, it takes up to 50 to 60% of all brain cells to get damaged before someone even begins to notice the symptoms of something like alzheimer's. Imagine if your computer got 50% damaged before you noticed something was wrong! And yet, scientists everywhere continue to use this stupid 'brain-as-computer' analogy - there's no fucking computer that works this way!
Moreover, I even wrote a post where I demonstrated clear evidence of a man who's brain had 90% of his brain gone and yet he lived a normal, healthy life. 
It seems that the brain doesn't even come close to working like what you described. Instead, it seems to be holographic.
That is:
1 - every part contains functions, memories and aspects of every other part.
2 - It works by shining a light onto reality to recover a 3D image.
So stop thinking of yourself as this limited little consciousness produced by a mass of jelly in a calcified water-bag worth about $20 at the Ace-Hardware store for 99% of it and $160 for 100% of it. Scientists like Daniel Dennett love to rub themselves over this delusion, but it's simply not the case. 
Instead, realize that Capital-C consciousness is analogous to the combination of a holographic card, a laser light, and a holographic projection. 


Your brain, instead of creating consciousness, is better described as a way to anchor or tune into conscious percepts.
Another way to think of it is that a radio doesn't create radio waves and it doesn't create music, instead it taps into radio waves to play music from a specific frequency. 
You don't create consciousness and you don't create your perceived life, you tap into consciousness and play out your life at your own frequency. 
So how are you not your brain?
first off, you are the perceiver, the act of perceiving, and that which is perceived. Without any one of these nothing would exist and its basically incoherent to say otherwise.
The brain is only within the category of that which is perceived. At best, it is only 1/3 of the necessary components of existence.
So describing yourself as the brain leaves out other important aspects of you. Again, you are the whole of perceiver, perception, perceived. This is what is meant by transcending the limited view of yourself. 
Second off, you are confusing the brain's correlations to consciousness with creation of consciousness. Correlation is not causation!
So consider that the same way that if I destroy a radio, radio waves - and thus music - don't cease to exist ... then if I destroy a brain, consciousness and thus the music of consciousness don't necessarily cease to exist. And yet, a radio's functions correlate with music.
In this way, what the brain does is kind of filter and limit consciousness down to one small, distinct perspective. destroying the brain simply means going back to an unfiltered, unlimited consciousness that is completely non distinct perspective. It would be so non distinct that any description of it would simply not come close to describing it... and yet it would be the capital T Truth.
So you ask would a person be enlightened if they destroyed their brain? 
DUDE WAKE UP: ENLIGHTENMENT IS SPECIFICALLY WHEN YOU "DESTROY" YOUR BRAIN AND GO BACK TO UNLIMITED CONSCIOUSNESS.