The “Unbreakable (or “Indestructible”) Wall” Icon of the Most Holy Theotokos is commemorated on the Sunday of All Saints. It is an icon of the Blachernae type, in which the Virgin is shown with Her hands raised and the palms facing forward. Christ is depicted within a roundel, or mandorla. This is an oval or circle symbolizing the glory of Heaven, or Divine Light.
Perhaps the name of this particular Icon is derived from Amos 7:7 where the Lord is said to be standing on “a wall of adamant” (LXX).
