The very word can trigger fear or disgust. But when you ask: “What is the physiological purpose of parasites?”

You’re asking not just about pathogens but about the body's ecosystem, its boundaries, and what happens when something foreign is allowed to stay inside. Parasites are not always random invaders. They can also be teachers, mirrors, and even adaptive messengers of imbalance, trauma, or unconscious permission.

Let’s explore parasites through the biological, emotional, and symbolic or spiritual lenses — because their presence always has a reason.