Reading from the Synaxarion:

The Holy Protection of the Theotokos

The Feast of the Protection commemorates the appearance of the most holy Theotokos in the Church of Blachernae in Constantinople in the tenth century, as recorded in the life of Saint Andrew the Fool for Christ's sake. While the multitudes of the faithful were gathered in church, Epiphanius, the friend of Saint Andrew, through the Saint's prayers, beheld the Virgin Mary above the faithful and spreading out her veil over them, signifying her unceasing protection of all Christians. Because of this we keep a yearly feast of gratitude, imploring our Lady never to cease sheltering us in her mighty prayers.

In the Greek tradition, this feast is celebrated on October 28, while in the Slavic tradition, this feast is celebrated on October 1.

Apolytikion of Holy Protection of the Theotokos in the Fourth Tone:

O Virgin, we extol the great grace of thy Protection, which thou didst spread out like a bright cloud beyond all understanding; for thou dost invisibly protect thy people from the foe's every assault. Since we have thee as our shelter and certain help, we cry to thee with our whole soul: Glory to thy great deeds, O most pure Maid. Glory to thy shelter most divine. Glory to thy care and providence for us, O spotless one.

Kontakion of Holy Protection of the Theotokos in the Third Tone

Let us the faithful hasten to the Theotokos now and venerate her sacred veil, as we chant unto her, singing hymns to praise and honour her, as is fitting; for she shelt'reth with her shelter and all her faithful flock and preserveth them unharmed from all calamities, as they cry to her: Rejoice, Protection most radiant.