“The term “tulpa” seems to originate from Tibetan Buddhism. Samuel Veissière, an anthropologist and cognitive scientist at McGill University, describes tulpas as “imaginary companions who are said to have achieved full sentience after being conjured through ‘thoughtform’ meditative practice.” In other words, this is a benign hallucination.” :: https://nautil.us/blog/can-you-treat-loneliness-by-creating-an-imaginary-friend