Blessed Hesychius the Horebite (VI–VII centuries) is described in the "Ladder" of St. Peter. St. John of the Ladder. He lived as a hermit on Mount Horeb near the monastery of Catherine the Great Martyr in Sinai, but he did not care about the salvation of his soul. One day, blessed Hesychius fell so seriously ill that he was between life and death. After recovering, he walled up the doors of his cell and for 12 years did not talk to any of the brethren. 
Saint Hesychius was constantly "horrified and lamented what he saw during his frenzy" and shed tears of repentance. Shortly before his death, the monks dismantled the entrance to the cell and began to ask the blessed one to tell them about his vision. Hesychius replied with a single phrase: "Forgive me; he who has acquired the memory of death can never sin."
Blessed Hesychius was buried in the cemetery near the monastery of the Great Martyr Catherine. After some time, the brethren opened the grave, but did not find the remains of the ascetic in it. In this way, the Lord showed "Hesychius' zealous and praiseworthy repentance and assured us that He accepts those who, even after much negligence, want to improve." St. John of the Ladder (+ 649) witnessed these events.
In the Greek calendars, the memory of St. Hesychia of Horevit is not marked. The story about him was included in the teaching section of a lengthy edition of the Old Russian Prologue in the 3rd quarter of the 12th century. Perhaps it was introduced not directly from the Ladder, but from the Pandect of Nikon Chernogorets. Subsequently, this story began to be perceived as the life of a saint and the memory of Blessed Hesychius Horevit was included in Russian calendars.