"For everyone will be salted with fire."
Salt is a preservative. Salt alters the taste of food. Even the salt on our skin can sting an open wound.
In popular culture, we may think of people who are "salty," not so much as seasoned, which they most likely are, but as course, as altogether too earthy. These are people who have been changed, perhaps, not by a single experience, but by a lifetime of experience living in the world.
Salt changes the food it touches irrevocably. Over-salt something, and it might be ruined. You can wash the salt with much water, but it won't ever go back to its original form. So it takes practice and great care for us to salt properly,even to our own taste.
God does take great care with us, but that salt is necessary. Otherwise we are not only bland, but do not last, and are useless.
Lord, help me to accept the fire you salt me with. Change me to your taste, for in such actions you prove I belong to You. Amen.