ðɪs wʌz ðˈɛn fˈɑːloʊd baɪ ɐn ˈɪntɚvəl ʌv ɪntˈɛnsɪv spˈɪɹɪtʃˌuːəl dˈaɪəts ænd ɹᵻtɹˈiːts, lˈiːdɪŋ hˌɪm ɪn nˈaɪntiːnhˈʌndɹɪd sˈɪksti fˈaɪv tə ɹˈaɪt hɪz fˈɜːst bˈʊk ɹˌɛvɪlˈeɪʃənz tˈɛsɪlˌɪjæt.
This was then followed by an interval of intensive spiritual diets and retreats, leading him in 1965 to write his first book Revelations (Tecelliyat).