Light can only go the speed of light. It always appears to be traveling at (c) from whatever reference point you use. Is this primarily because space and time are altered in a manner than maintains the consistency of the speed when viewed by an observer?

Can (c) be thought of as being either held up, from slowing down, or held back, from speeding up? Well, it can't speed up because there is only so much energy to move through the first four dimensions, correct? Motion through the first three dimensions diverts energy from moving through time, if you transfer as much as you can you're moving through space at (c). But is there any clue as to why that overall, you only have this much energy to move through these dimensions and that is all you get, limit is there? I'm not sure if I'm missing a big piece or if I'm just trying to complicate it. What is the name for the sum total of movement through the first four dimensions?

The 'what would a light beam look like if frozen' question doesn't have an answer because it's irrelevant to ask the question due to the laws of physics, correct?

I'm not sure how to phrase this but I get the feeling like the universe has it written in so that from anythings point of view, everything looks allright, but behind the scenes there can be some trickery, so long as certain things remain equal. Is this some what of a correct way to approach it?