“If someone touches a human bone or a grave, that person will be defiled for seven days.”
There seem to have been a myriad of rules and regulations the Israelites had to follow. It would seem to have been impossible to go through a single day without one or the other of them being applicable.
But maybe in large part that was the reason behind the rules and regulations. They were not to go through a day without remembering whose they were, and whom they served.
