Sisters Celebrate Special Dominican Feasts for All Saints and All Souls

"... the help of their intercession."
In the same way that the universal Church celebrates the feast of All Saints on Nov. 1, and All Souls the day after, the Order of Preachers, or Dominicans, have their own similar feast days.
November 7 — All Saints Of The Order Of Preachers
The Dominican Constitution states that today we faithfully remember,
those who have gone before us in the family of Saint Dominic and who offer us the example of their way of life, their company in the communion of saints, and help of their intercession. By this celebration may we be moved to imitate them and be strengthened in the spirit of our vocation.
(Liber constitutionum et Ordinationum Ordinis Fratrum Preadicatorum, nn. 16, 67. See General Chapter 2004.)
November 8 — Anniversary Of the Deceased Brothers And Sisters Of The Order
The practice of the universal Church has associated the feast of All Saints with that of All Souls, emphasizing the fundamental truth of the communion of saints. According to the custom of our Order after celebrating the feast of All Saints of the Order of Preachers we too remember our brothers and sisters who have gone before us with the sign of faith and pray that they might enjoy eternal rest with the Lord.
(From Supplement to the Liturgy of the Hours for the Order of Preachers, a draft translation)