There is much talk of ascension as much of the spiritual community is calling the current events of humanity a symptom of mass ascension. This event is said to raise the consciousness of man to a 5th dimensional incorporation of the spirit world. It is agreed that the collective consciousness of man has not yet received this achievement but you cannot help to think about what would be thereafter.
The 5th dimension is not an idea exclusive to spirituality and science explains that one of the most probable explanations of the sub-atomic mystery would be a multidimensional Universe with much more than 5 dimensions. They have been trying to prove this intangible theory for years and still have yet to find out how to prove this. The reason for this scientific failure is unless you allow your mind to achieve these realities there will be no evidence that it exists in your physical world. It is more of a graduation incorporated into your life than an existence accessible to all.
Taking the known understanding of physics as we dissect the 1st three dimensions we find the encompassing of all dimensions into a current reality. Briefly stated; The first dimension exists on a line, the second dimension exists on a plane, and the third dimension extend perpendicularly to the second dimension, anything therein can be a plane, a line, a dot, or an object. The 3rd cannot exist without the 1st two in our specific reality but that is not to say that this is not defined completely differently in alternative Universes (an emerging theory picking up great credibility).
Now that your head is spinning from the known dimensions the mystery of the 4th and 5th appears. Many say that the 4th dimension is time but time is a man made idea and unless observed in that way has no power in any of our dimensions and the 5th is said to be too complex to view as a whole in our modern scientific community.
The spiritual theory of these two widely misunderstood dimensions is that the fourth is the realm of feeling as our innate ability to feel the connection to the 5th (spirit realm) and the 3rd in which we perceive reality connects via existence. This theory states that our disconnection from the spirit world allows for duality and we exist simultaneously in these dimensions but only catch up to this reality when consciousness is brave enough to venture into these unknown dimensions. This is the basis for ascension and is said to be taking place now and will come to a crossroad on 12/21/2012.
Provided the prior theory is true, some of us would have to achieve 8th dimension consciousness for this to occur. As life is eternal and evolution is constant and never ending making a much higher level of consciousness mandatory to raise the median level to the 5th. The same is true as many great masters have achieved 5th Dimension consciousness while the norm was 3rd Dimensional. Someone must open the gates (so to speak) to the 8th (according to the Fibonacci sequence)in order to set the median level at the 5th as we always have a governing consciousness and a higher level to strive for, as this is the purpose of our ever evolving spirit.