The '''Anavathmoi''' ('''Hymns of Ascent''', sometimes spelled '''Anabathmoi''') are a series of [[hymn]]s sung after the [[hypakoe]] and preceding the [[Prokeimoenon]] of the Gospel reading during [[Orthros]]. They find their origin in the Ascension [[Psalm]]s developed in Jewish worship from the ascension to [[Jerusalem]] after captivity and, later, sung at each step leading up to the Jewish temple in Jerusalem. On Sundays, the Anavathmoi follow the tone of the week set forth in the [[Octoechos]] cycle, unless one of the [[Great Feasts]] falls on a Sunday. On these days, as on weekdays, the Fourth Mode Anavathmos, "From My Youth," is chanted instead.