It may be love you have seen, met, or experienced:
The world is very big, and in its endless time, it still cannot wait for you;
The world is small, and no matter how many twists and turns we go around, we can't avoid you.
Like.
It is the simplest complex sentence in the world,
It is also the most complex simple sentence in the world,
A lifetime, only a few years,
I love you just for the sake of saying it.