A Meta-narrative is hard to explain. Basically it is a master story, to do with an archetypal plot referred to by "lesser" specifically situated narratives.
The overarching plot of a story refers to the main storyline or central theme that drives the narrative forward. It typically involves the main characters facing challenges or conflicts that they must overcome in order to achieve their goals or resolve the central conflict of the story.
Yes, Gabriel appeared to Joseph in the biblical story.
The angel Gabriel appeared to Mary in the biblical story.
Mordecai is Esther's cousin in the biblical story of Purim.
The angel who spoke to Joseph in the biblical story was the angel Gabriel.
According to the biblical story, Cain killed Abel in the field.
Jonah goes to Nineveh in the biblical story of Jonah.
Angels appeared to shepherds in the biblical story on the night Jesus was born in Bethlehem.
In the biblical story of the Exodus, Moses' Egyptian brother is named Ramses.
In the biblical story of Cain and Abel, Abel was killed by his brother Cain.
In the biblical story of the brothers, Cain killed Abel.