Dormition of Mary

At the end of the Blessed Virgin Mary's life -

"..and she stretched her hands to heaven and prayed, saying: I adore, and praise, and glorify Your much to be praised name, O Lord, because You have looked upon the lowliness of Your handmaiden, and because You that are mighty has done great things for me; and, behold, all generations shall count me blessed. Luke 1:48 And after the prayer she said to the apostles: Cast incense, and pray. And when they had prayed, there was thunder from heaven, and there came a fearful voice, as if of chariots; and, behold, a multitude of a host of angels and powers, and a voice, as if of the Son of man, was heard, and the seraphim in a circle round the house where the holy, spotless mother of God and virgin was lying, so that all who were in Bethlehem beheld all the wonderful things, and came to Jerusalem and reported all the wonderful things that had come to pass. And it came to pass, when the voice was heard, that the sun and the moon suddenly appeared about the house; and an assembly of the first-born saints stood beside the house where the mother of the Lord was lying, for her honour and glory. And I beheld also that many signs came to pass, the blind seeing, the deaf hearing, the lame walking, lepers cleansed, and those possessed by unclean spirits cured; and every one who was under disease and sickness, touching the outside of the wall of the house where she was lying, cried out: Holy Mary, who brought forth Christ our God, have mercy upon us."

Excerpt from the Account of St. John the Theologian of the Falling Asleep of the Holy Mother of God. Full text HERE