@Fil Albuquerque,
Dimensions are interesting. The interesting thing is how many dimensions we need to describe the universe. Used to be that the number of dimensions needed was the same as the number of dimensions perceived.
But is it not true that there can be more dimensions to reality than we are aware of? There are ten, according to some new theories, and we exist in all of them.
That raises the question of awareness.
If we were two dimensional in a 2d world with 2d awareness, we would only be aware of our surroundings in a flat circle around us. Anything crossing our field of awareness on the third dimensional axis would be perceived by us as suddenly appearing and disappearing as it passed through.
To us, perceiving a three dimensional universe, time is similar. The fourth dimension exists in straight angles to all the dimensions beneath. It is a fifth "direction", and everything always has movement in the 3d directions along an axis of the fourth, time.
That is how we perceive. We are perceiving from a fixed "location" on the 4d axis, and so reality always unfolds in what we know as the present.
But we have abstract knowledge of the time axis. If a comet passes earth, we will see it come and then disappear. But we know the trajectory it will take, how fast it will travel and that it is going to happen in the first place.
That means we approach the situation from the dimension above, the fifth dimension. From a 5d perspective, the comet isn't coming or going by. It is in all places simultaneously, and it would be perceived as a line through space, like a river, existing everywhere along it's path simultaneously.
To perceive that we would have to have an an "anchor" in the sixth dimension. Some direction of movement that would allow everything to unfold simultaneously in a progressive mind.
So we can't perceive 5 dimensional reality, but our minds operate in at least that many, maybe more.
