He claimed to have his first OBE when he was just 12 years old and often in a state of catalepsy. The experiences continued into his adult life. In 1927 he contacted Hereward Carrington after reading a book Carrington had written on astral projection, in the letter he states "What puzzles me most is that you make the remark that M. Lancelin has told practically all that is known on the subject. Why, Mr Carrington, I have never read Lancelin's work, but if you have given the gist of it in your book, then I can write a book on the things that Lancelin does not know!". This resulted in a partnership and work on The Projection of the Astral Body, which was published in 1929.