Reflection is the change in direction of a wave at a boundary between two different media, so that the wave moves back into the same medium form which it came from. The most common examples include the reflection of light, sound and water waves.
Reflection is a mirror-like reflection of light from a surface, in which light from a single incoming direction is reflected into a single outgoing direction. Both angles have to be equal whenever reflection occurs. This is known as the “law of reflection”.
The word “reflection” can also be used to mean an allegory, or a thing or person that resembles another
Those Reflection quote is only defining theory that human can take in their sensibility, but if we dig more about the meaning of Reflection, how much we can appreciate life and how much your life had so much meaning, and it can reflect when you seeing deep inside your sight.
for example these picture of several building of a university, if we see in a clear sky and watch clearly, we ‘ll find the resembles of the building clear enough and beautifull enough.