More importantly, one of our four dimensions is time. In fact it could be argued that we would appear to be a fleeting shadow to these extra-dimensional beings. Our existence in only four dimensions would seem short and futile to such beings. The interesting thing about this is that the Bible does give us very clear insights into the existence of these extra-dimensional realms. Firstly, the Bible is the only holy book which speaks of a creator who is totally beyond the realms of time and space.
Many holy books speak of creation, but always in the context of our own dimensions.
The Bible also implies the existance of God outside our normal stream of time. Our paths were laid out by God prior to the beginning of the universe, yet according to the same scriptures we are responsible before God for all our actions and are without excuse. How can we be both predestined and have a free will at the same time. In our stream of time this is impossible, but for our Creator, who established our dimensions of time and stretched them out at the beginning of the universe, this is quite natural. Let us take a small leap of faith at this point.