Early life and entry into monasticism
He was born Dimitrios Dimitriadis in Smyrna (modern İzmir) in 1846 and studied at the Evangelical School of Smyrna, where he became acquainted with Holy Scripture and the Philokalia. As a young man he sought the monastic life and entered the Monastery of St. Panteleimon on Mount Athos, where he was tonsured a monk and given the name Daniel.
Tensions between Greek and Russian monks during this period led to a season of displacement, including a period away from the Holy Mountain at the Monastery of St. Anastasia Pharmakolytria in Halkidiki. He also spent five years at the Monastery of Vatopaidi before settling permanently in the remote ascetic region of Katounakia.