Why has nature given us two eyes instead of one ?

Explanation

Nature has given us two eyes, which give us a pretty good idea about the distance of an object. For example, if we were to put a thread into a needle's eye with one of our eyes closed, the thread goes either too far behind the needle or stops short in front of it. However, when we focus both our eyes on the needle's eye, threading gets done instantly. Thus nature has given us two eyes so that we can have an idea of solidity and distance of the object we observe.