An annunciation is an announcement, a proclamation. In Christianity, the annunciation is the moment the angel Gabriel appears to the Virgin Mary, telling her that she will bear the son of God. A feast to celebrate this event is observed on March 25, and it is an important subject of paintings and reliefs made for churches and private devotion. Mary is usually depicted reading or holding a book. A lectern, a lily (purity), a walled garden (Mary’s virginity) or a dove (the Holy Spirit) are common features of these works. Florence’s museums and churches abound with portrayals of the annunciation.