What is the poem that can explain that the angle of the observation point is changing and the result is changing?

The poem that can explain that the angle of the observation point is changing and the result is changing is: from the side of the ridge, it has become a mountain peak, with different distances. I can't recognize the true face of Lushan Mountain because I am there.

Topic Xilin wall

Author: Su Shi

Looking at Lushan Mountain from the front and side of peaks and valleys, from far, near, high and low places, Lushan Mountain presents various faces. I can't recognize the true face of Lushan Mountain because I am there.

translate

Seen from the front and side, Lushan Mountain is undulating and peaks stand tall. Seen from afar, near, high and low, Lushan Mountain presents various appearances.

The reason why I can't recognize the true face of Lushan Mountain is because I am in Lushan Mountain.