Why is the earth round? It is so that separated lovers can find each other.

This sentence can be understood like this:

(Please switch the person freely)

The reason why the earth is round is because you and I are destined to be together. , even if you and I are far apart, on this round earth, we will always meet unexpectedly at some point.

Because only if the earth is round, two moving objects can meet. In fact, this statement is not quite correct, but it is more artistic, so there is no need to go into it further. Other shapes are also acceptable, as long as it is a three-dimensional figure.