In BB's translation of the Majjhima Nikaya, at MN 124.41, his note to the sentence, "Then, seated in the midst of the Sangha of bhikkhus, the venerable Bakkula attained final NIbbana" (p. 988), says, "[The] Majjhima Nikaya Attakatha [commentary says]: Ven. Bakkula entered into meditation on the heat element and attained final Nibbana by causing his entire body to be consumed by that blaze. Only the relics remained" (p. 1338).
1. Does this relate to what we moderns call "spontaneous combustion"?
2. Did Reverend Bakkula commit suicide?
"You stop me, obviously with a demand for a personal explanation. 'How is it, you write, 'that you reject with such immitigable scorn the very foundation-stones of Buddhism, and yet refer disciples enthusiastically to the technique of some of its subtlest super-structures?'
-Aleister Crowley, Magick Without Tears
, Chapter XXVII: Structure of Mind Based on that of Body (Haeckel and Bertrand Russell)
"Questions of reality are too important to be left to the scientists."
-Paul Feyerbend, The Tyranny of Science
, p. 51 (Polity: 2012).