life's a why and how

how life can be when a nail's stuck in the woodwork. when you've hammered the nail so deep that you can't pull it out. The nail become an eyesore after being left for long, rusted and old, staining the woodwork from the water that flows downwards as the rain hits. Leaving a mark and stain on the wood. No matter how the nail is being removed there's always a hole in the wood.

why is it that the hole can't be covered back to it's comdition before the nial was put through the wood? a new nail is being looked for to fill that gap. When the nail gets too rusted and expands in it's place it breaks the wood. Craking lines form around it as it rust and expands. It soon become a pain in the back for the wood. It's so hard to move it. how come the wood has to suffer? how come the wood can't regrow and repair itself off the nail's hole. why? why is the nail so selfishly wanting to stab the wood and not let go and putting a crack in the wood? In time to come the wood will break in two and the nail will lose out too. Is it so hard to remove a nail?