For instance, we have our senses, and expect alien beings to have eyes for vision, mouth for aural communication etc.
That may not be the case.
They may have entirely foreign 'senses', emotions, physical attributes. Heck, then could be on an entirely different plain of existance to ourselves.
We have to try to think outside the box if we are ever to comprehend what possibly exists in the universe. Then again, the universe could simply be a flea on the back of a dog. We could all be ultra-microscopic, the universe could be part of a bigger entity all together.
There are countless possibilities, and it hurts my brain trying to think of them so i'll leave it there.


