When we look at the view outside the window of a moving vehicle, the trees and buildings that are closer fade away rapidly while the distant mountains always go out of sight slowly. This is because when an object is closer, its movement in our sight is bigger; and when an object is farther, its movement is relatively smaller. The moon is 380,000 kilometers away from us, which means it is too distant for us to detect any changes in our sight. That is why the moon always seems to follow us.
Put on the VR device and compare if the moon still follows you around when the distance changes. 

採用VR技術呈現月球距離地球如此遙遠，因此容易讓人產生視覺錯覺，誤以為月球跟著人移動。