Again, for those who may be interested, a book that I've just finished reading is 'The God Impulse' by Kevin Nelson which seeks to explain many of the experiences in the youtube video in neurological terms.
This paper by the author summarises his approach and his findings:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6170042/
Well, I might follow the link you have given, but Sriram's? No, no, no!!