Temptation and the Battle of 811
The pivotal episode of Nicholas's life, as the tradition records it, is the night before battle when he refused the advances of the innkeeper's daughter. The Prologue of Ohrid relates that he defeated the temptation three times and received a strange dream that anticipated the outcome of the war. The campaign is identified with the Byzantine expedition against the Bulgars under Nikephoros I, which ended in a crushing defeat in the year 811 in which, according to the account, his entire division perished.
His survival, set against the destruction of his comrades, is presented in the synaxarion not as chance but as the fruit of his chastity. The vision that followed disclosed to him that the place appointed for his death had been left empty because he had withstood temptation—a revelation he received as the decisive turning point of his life.