Given the Yogishy trappings of the ++++ (http://www.erowid.org/library/books_online/pihkal/shulgin_rating_scale.shtml") (and elsewhere) in PIHKAL, next up would mahasamadhi.
I'm surprised I missed this one.
Alexander Shulgin (http://grantland.com/hollywood-prospectus/alexander-shulgin-1925-2014-godfather-of-psychedelics-and-ecstacist/), aged 88, on June 2.