Mission to the Vyatichi
An elder of the Kiev Caves Monastery, Kuksha departed his community to evangelize the Vyatichi, a pagan tribe settled along the River Oka. The sources record that he preached the Gospel and baptized many of them into the Church, working as both missionary and wonderworker.
The synaxarion attributes a series of signs to him during this labor: it relates that he cast out devils, caused rain to fall, and dried up a lake, and that these works accompanied the conversion and baptism of the Vyatichi. His preaching and the destruction of idols provoked the hostility of the pagan priests.