Forgiveness and A Question

Matthew 9:4-7

Jesus stepped into a boat, crossed over and came to his own town. Some men brought to him a paralyzed man, lying on a mat. When Jesus saw their faith, he said to the man, “Take heart, son; your sins are forgiven.”

At this, some of the teachers of the law said to themselves, “This fellow is blaspheming!”

Knowing their thoughts, Jesus said, “Why do you entertain evil thoughts in your hearts? Which is easier: to say, ‘Your sins are forgiven,’ or to say, ‘Get up and walk’? But I want you to know that the Son of Man has authority on earth to forgive sins.” So he said to the paralyzed man, “Get up, take your mat and go home.” Then the man got up and went home.

It has long felt to me like forgiveness is a reconciliation between one and God but, in a realm that includes intrinsically the spirit realm, this would likely take the form of a tangible shift. I imagine that, from a human perspective, this would appear to be physical, movement. I imagine that, while the paths would be difficult to trace due to their complexity and higher dimensional nature, there is a space in which these paths taken could be traced logically all the same.

This reminds me of a video I saw recently of 4D Minecraft, where the mouse wheel (I think it was) was assigned to one's angle in the 4th dimension. From a 3D gameplay perspective it made things very hard to keep straight if you spun that wheel, but you were still on the same map and, with a little triangulation, you could return to where you had been. 

If God has walked a straight line along a perfect path from the beginning to end of this timeline, but has given us the freedom and resources to walk as we'd like, such a forgiveness/reconciliation process might look like a plane shift, time travel, reconstruction, deconstruction, stuff disappearing or appearing out of nowhere, all manner of things that a human can fathom, and likely much more. I am picturing it much like the concept behind Flatland. One question remains though: why would Jesus often, but not always, speak of "The Son of Man" if he was exclusively referencing himself?