Hi algebraic, nice intro.
On the topic of the 'higher dimension', do you really think that it's truly another dimension or is it just our minds playing with us to the extreme? After all, when we trip, we're not actually manifesting in the physical sense. It's just a bunch of chemicals flowing through our brain.
While I'm new to all this and admittedly I haven't had my first real trip yet (this would probably explain everything), there's still this rational side to me that seems quite stubborn. Perhaps that the visuals are nothing more than that - visuals.
Another issue is that while we may experience these amazing things, it has very little affect on us in a material sense. It may be enlightening, however what does it actually change within ourselves, if you catch the drift. The chemicals in our brain die off and we're back to square one.
After all, we dream every night, yet nothing really succumbs of it. Of course, some people say that you can learn a lot from studying your dreams and that they're events that may come true, although I haven't studied that far into it.
Just my two cents 