Because forgiveness is like this: a room can be dank because you have closed the windows, you've closed the curtains. But the sun is shining outside, and the air is fresh outside. In order to get that fresh air, you have to get up and open the window and draw the curtains apart.
Salt is a preservative. It really holds flavor. For example, if you chop up some fresh herbs, or even just garlic, the salt will extract the moisture and preserve the flavor.