Nilus of Sora was a 15th-century Russian Orthodox monk, theologian, and spiritual writer. Born into the Maikov nobility, he initially worked as a scribe before pursuing a monastic life. After traveling to the Holy Land, Greece, and Mount Athos, he became deeply influenced by the Hesychast movement. He eventually established the Sora Hermitage near the Kirillo-Belozersky Monastery. He is most recognized for leading the non-possessors, a group that advocated for monastic simplicity and opposed the extensive landownership held by religious institutions during his era.
Spiritual teachings

Nilus emphasized the inner spiritual life and personal emotional connection to faith over external religious rituals. Drawing from hesychasm, he taught that believers should focus on their internal world to achieve unity with God. He promoted a lifestyle of constant self-improvement based on the Gospels, advocating for modest living and productive labor for monks rather than relying on vast monastic estates.
Ecclesiastical influence

During the Novgorod heresy affair, Nilus and his associate Paisius Yaroslavov maintained a more tolerant stance toward heretics than many contemporary clergy. He also actively challenged the massive landholdings of monasteries at the Synod of 1503. He believed that such extensive property ownership contributed to the moral decline of monastic communities, supporting policies aimed at secularizing these lands.
Veneration
The Russian Orthodox Church recognizes Nilus as a saint. He is remembered for his asceticism and his role as a spiritual leader. His feast day is observed annually on May 7, marking the anniversary of his death in 1508.
