Sounds like bullshit made to hide or obfuscate a similar concept or word, a decoy. It has all the cult-like features of an autonomous self propelling cultural manifestation (with purpose unknown).
These being: dubious reliance on eastern or mystical religious connection, fan-based growth mechanisms, blurry definition, 'mind' and 'brain' interest hooks for people worried about their intelligence to latch on. They are the ugly cousins of ARGs.
It is unlikely to have been made by accident, so it must have a purpose and a creator with intent behind it.
Even if this wasnt unhealthy, I fail to see the benefits of this even after reading the "What is a tulpa good for?" section.