In 1871 Chicago burned to the ground. Over 17,000 buildings were destroyed and Aaron Montgomery Ward's inventory went up in smoke. If he had let that become the story of his life, we would never have heard of Wards. Aaron Montgomery Ward started over and pioneered the mail-order business. But when God turns the stuff of your life for good, it's real.
Sin is bad stuff, evil.
I don't need to go into a long lecture about sin. It's all about us. Sin is breaking God's commands by what we say, think, or do. Sin is all about us because it multiplies. For example, King David coveted his neighbor's wife.