Water, Earth, Air, Fire, and Picket Fences

That time brings metamorphosis to all things should be evident living on a planet with molten lava at its core.  Shakespeare wrote about sea-change transforming our bones ?into something rich and strange?.  Most change is so subtle that we do not see it even though it has been going on since the Big Bang?and we may speculate if it was happening even earlier. The classical four elements: Water, Earth, Air, and Fire regarded for centuries as the states-of-matter or simplest main parts of which anything consists were used to divide the formal and free verse poems. The last section, Picket Fences, is the added fifth element.