The perfect recipe for a therian.

I don't believe in souls, and I don't believe that we are born therians. Some of us may be predisposed to therianthropy, but it is not guaranteed to develop. So what does it take to become one? I see two main ingredients necessary for therianthropy to develop. Those being a connection to an animal, and a disconnect from oneself. The connection can come from a variety of places. People prone to special interests and hyperfixations are far more likely to have this connection. The same goes for people with pets, especially those who had a deep bond with the animal, potentially due to trauma. The disconnect from yourself or reality seems to have several common causes. The first of which is being transgender, which causes you to be uncomfortable in your body and life. Another one is being neurodivergent, which causes you to feel out of place in the world. Trauma and dissociation are very common causes as well, but it can be from anything really. When someone feels disconnected from the world, they will latch onto the animal that they feel connected to for a sense of security and identity. They will begin to project themselves onto the animal, then they will eventually see themselves as the animal. I feel that this recipe for therianthropy explains why so many therians are neurodivergent, mentally ill, and LGBT.
My experience certainly falls under this pattern. I had a special interest in animals from around the age of three, maybe younger. I would play pretend as an animal as much as I possibly could, and learned all that I could about them. Once I started school, I couldn't act like an animal visibly anymore. The school environment was incredibly overstimulating and overwhelming, so I dissociated frequently. I spent hours every single day at school zoned out. While I was dissociating, I engaged in maladaptive daydreaming. In these daydreams I would imagine myself and everyone around me as an animal. I never saw myself as a human, not even once. I wanted to be someone else and somewhere else, and being an animal was my escape. Eventually, this pretending wasn't pretending anymore. I really did see myself as an animal on the inside. That has never gone away.

This is very interesting, and I think a pretty solid theory for some. Part of it fits my situation, but for the most part, this doesn't explain my experience as a therian overall. I also was fixated on animals at a very young age, long before I can remember, but this is where I diverge. While my parents have footage of me as a tiny, tiny pup imitating animals and I did continue to imitate them, for me it went beyond just pretend. I felt like an animal right off the bat, and I'm not neurodivergent or transgender, just asexual which doesn't cause dysphoria or disconnection. I never disassociated from myself until after I had pushed my therianthropy away.

I personally believe there are multiple things that cause therianthropy depending on the person and their situation.