Spiders webs are never finished as every day the spider reweaves, repairing breaks. They are a work in progress. They are also anchored to a number of solid points for support, but are woven with inbuilt flexibility to ensure they don't tear when the wind blows. If they were over tight, they would break
A life lesson perhaps? We need to be constantly remade and need to ensure we are resiliant and flexible to deal with the turbulence when it comes.