Inspiration from spider network

One day, I saw a black spider with a large net between the two backs of the backyard. I think: Is the spider flying? Or, from this wall to the wall, a few meters wide in the middle, how did the first line pull over? Later, I found that the spider has gone a lot of detours - from one end to the end, knotting, going down the wall, stepping forward step by step, carefully, lifting the tail, not letting the silk touch the ground sand or other objects On, walked through the open space, and then climbed up to the opposite wall, the height is almost the same, and then tighten the wire, and so on.
Revelation: The spider does not fly, but it can tie the net in midair. It is a diligent, sensitive, silent and tough insect. Its net is made exquisite and regular, and it is open in the shape of a gossip. Such achievements make people think of those who are silent and some hidden wise men. So, I remember that the spider would not fly, but it still tied the net in the air. Miracles are caused by the perpetrators.