A spiritual flaw
Vision: Dreaming that your clothes are stained: take a close look at your habits and behaviors—the impression you make on others is very negative. Grease stains on your clothes: a marriage might make you prosperous. Soiling your clothes: you are about to make a mistake. See Fat.
Depth Psychology: Stains are often signs of a bad conscience, feelings of guilt, or too casual an attitude toward life. Which is it in your case?
To see a stain in your dream, represents a superficial and fixable mistake in your life.
To dream of Stained garments presages scandal to their wearer.
A dream about stain indicates worries over to trifling difficulties.
Dreams of a stain signify unhealed wounds, lingering trauma, and your fear of being found out for being less than perfect. Your dream is giving you the message to make amends for past transgressions and forgive those who have hurt you, including yourself. Also, keep in mind that there is a part of you that has never been hurt, harmed or damaged. See Scar and Spot.
To see stain on your hands, or clothing, while dreaming, foretells that trouble over small matters will assail you.
To see a stain on the garments of others, or on their flesh, foretells that some person will betray you.