"Whosoever would practice this devotion in his honour would have,
when approaching the Holy Table, an escort of nine angels chosen
from each one of the nine choirs. In addition, for the daily recital of
these nine salutations, he promised his continual assistance and that
of all the holy angels during life and, after death, deliverance from
purgatory for themselves and their relations."

Source of PDF Document:  Catholic Associates