Tolkien and Psychedelics

[Beregond]

J.R.R. writing, from Letters:

"This legend or myth or dim memory of some ancient history has always troubled me. In sleep I had the dreadful dream of the ineluctable Wave, either coming out of the quiet sea, or coming in towering over the green inlands. It still occurs occasionally, though now exorcized by writing about it. It always ends by surrender, and I awake gasping out of deep water. I used to draw it or write bad poems about it.....I began an abortive book of time-travel of which the end was to be the presence of my hero in the drowning of Atlantis. This was to be called Numenor, the Land in the West. - LETTER 257

He goes on to say that he brought the original legend of Numenor "into relation with the main mythology."

So, yes.