It could also mean troubles and unhappiness. Blood refers as well to the person ~ good or bad genie that runs in him like the bloodstream. When seen in-jar or any container, blood represents menstruation. The cover of that jar or whatever is used to stuff its aperture is the cotton or hygienic towel. In some cases, blood symbolizes what could not happen to-human being unless dead, like red blood from-patient turning blue or yellow.
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