 14 in the UK and reached platinum certification for 300,000 copies sold.In June 1978, during the recording of "Incantations", Oldfield and his siblings completed a three-day Exegesis seminar, a controversial self-assertiveness program based on Werner Erhard's EST training program.The experience had a significant effect on Oldfield's personality, who recalled that he underwent a "rebirth experience" by reliving past fears.