 There he met Roman and his friend Ilarion, former students of Gregory of Sinai.Romil moved from other monks in a separate cottage for a period of five years and then to Mount Sinai, while Grigorije remained under mentorship of Ilarion.When Ilarion died Grigorije also moved to Mount Sinai where he became a student of Roman who would later be known as saint Romil of Ravanica.