Christians commemorate the Ascension of Jesus during the festival known as Ascension Day. This celebration occurs 40 days after Easter, marking the moment when Jesus ascended into heaven following his resurrection. The day holds significant religious importance, as it reaffirms the belief in Jesus' divine nature and his promise of eternal life. Worship services often include prayers, hymns, and reflections on the implications of the Ascension, encouraging believers to live in light of this pivotal event in Christian faith.