Hi everyone,
We have evolved beyond the animal stage and developed attributes of higher thinking, sense of universality, humanitarian aspects, altruism, orderliness, love of beauty...and so on.
We have also developed some other traits that take us further away from the animal mind. We have a sense of disgust and revulsion which other animals don't have. Our revulsion at our own naked body, our own excreta, blood, saliva, urine, body hair and so on. Our disgust at any dead body.
All these are traits that subconsciously make us aware of the mundane and gross nature of the body and the need to move beyond it. Its a natural mindset that automatically surfaces to pull us towards higher characteristics.
IMO, its all part of spiritual evolution and the natural thrust to move away from animal traits.
Cheers.
Sriram