What is a mythical Tibetan entity called a talpa?

Answer 1

A Talpa is a tibetan demon, though not native to only Tibet. In Yiddish a Talpa is called a golem. In other words, A talpa/golem is a manifestation created by an adept to accomplish a certain task or tasks. So with that said it could be assumed that a talpa is a hollow shell created by man that is then animated through some process then given instruction on how to behave or given certain tasks to perform.

"Once the tulpa is endowed with enough vitality to be capable of playing the part of a real being, it tends to free itself from its maker's control . . . . Tibetan magicians also relate cases in which the tulpa is sent to fulfill a mission, but does not come back and pursues its peregrinations as a half-conscious, dangerously mischievous puppet. The same thing, it is said, may happen when the maker of the tulpa dies before having dissolved it."

~ Alexandra David-Neel, With Mystics and Magicians in Tibet.

The saying "If you tell a lie big enough, long enough, and loud enough, it will become the truth." also applies. If enough people believe a thing to be real, then it will be real. If people think and believe whole heartedly that a place is haunted, then it will be. Thought is creative.

"Take a demon as a demon and it will harm you.

Know a demon is in your mind and you'll be free of it."

~ Jetsun Milarepa