I've experienced thought-forms enough to know the depth of what you are talking about. A fully-conscious being of his own right created by the psychic energy/the power of imagination. It's no surprise to me that kids say they've seen ;him, and what you mention about existing in some parallel world that adults more or less grow out of also seems to be truer than adults would like to believe. I'd swar I had my own Santa Claus experience circa 1975. Einstein said imagination is more important than knowledge. Adults have talked themselves into a collective worldview, but it's all psychological.
Thanks for your article. It's exactly what I was looknig for considering my recent and long ago past experience.