The reason that they have done this (this is a theory created by Egyptologists) is so the dead pharaoh could symbolically climb the sides of the pyramid, make his way to the sky, and live forever. The pyramid also represented the rays of the sun.
To complete the sentence, in Masaccio's Holy trinity, it can be seen that the vanishing point is centered in the middle of the horizon line which is directly in front of the viewer. In the arts, the vanishing point refers to the point where two parallel lines seem to converge.
The thing that was heard before the armies then meet at the climax of so called the battle on ice in Alexander Nevsky would be a. a chorus singing a homophonic phrase. Hope this is the right answer and would be of help.