There is a group of people who live in different worlds and see different levels. However, as the earth keeps turning and the needles keep turning, the trajectories of their fates tend to get closer until one day, they are intertwined. It is not that they will never see each other again after they have an intersection, but they intersect and overlap.
Life is like a blank sheet of paper, love is the trace of life, interspersed in the trajectory of growth, not gorgeous but deep, not exaggerated but touching.