Complex sentence: Wellman, p.136 Fulbert expanded on the theme of miracles involving Mary especially ones where she had interceded between sinners and God, in this way the people could pray for Mary's intercession on their behalf, with God, in the perceived coming apocalypse.
Split into simpler sentences: Wellman, p.136 Fulbert expanded on the theme of miracles involving Mary especially cases where she had interceded between sinners and God. In this way people could pray for Mary's intercession on their behalf with God, in the perceived coming apocalypse.