Early life and entry into monasticism
According to his life as preserved in Orthodox sources, Basilisk was born about 1740 in the village of Ivanish, in the Kalyazin district of the Tver Governorate, into a peasant family. His parents, Gabriel and Stephania, raised their three sons in piety, and from childhood he knew hardship and learned humility.
Although he was at first married, he left family life with his wife's consent to pursue the monastic path. He first lived as a hermit in the forests of Chuvashia, keeping constant prayer and severe asceticism, before coming under the guidance of Elder Adrian in the Bryansk forests. There he was tonsured into the mantiya by Elder Adrian and given the name Basilisk. When Adrian departed to restore the Konevets Monastery, Basilisk remained behind, enduring intense spiritual temptations.
Hesychast life and the Jesus Prayer
During this period Basilisk met Father Zosima, then still called Zachariah, in whom he recognized a sincere spiritual friend, warm of heart and one in soul with him. It was Zosima who opened to Basilisk the teaching concerning the Prayer of the Heart. Taking up the Jesus Prayer with great zeal, Basilisk made it the center of his ascetic life.
Through the unceasing practice of the prayer joined to deep humility, his life as recorded relates that he was granted profound interior experiences, including the illumination of a radiant light. Zosima later compiled a manuscript recording the elder's spiritual experiences of prayer, which Basilisk himself read and corrected.
The two ascetics struggled together in a hermitage in the Siberian forest near the city of Kuznetsk for roughly twenty years. In 1799 they parted to live in separate cells, about fifty versts from Kuznetsk, while preserving their spiritual brotherhood. In time they offered guidance to women seeking the monastic life, an effort connected with the revival of the Saint Nicholas-Turinsk Monastery.
Repose, relics, and glorification
Basilisk reposed on December 29, 1824. His life records that he foretold his departure, having confessed and received communion the day before, and that his body remained incorrupt, described as still flexible seven days after death.
A stone chapel was raised over his grave in 1913 and consecrated in 1914; both it and the grave structures were destroyed during the Soviet period. His relics were recovered in 2000, and accounts of healing were associated with his intercession. He was glorified as a saint in 2004.