How to pray: This rosary consists of four decades (40 beads) in memory of the forty hours which Our Lord is thought to have spent in Limbo. There are also the 5 introductory beads as on the Dominican Rosary.

One begins and ends this chaplet with the "De profundis" or an "Our Father" and "Hail Mary." On the large beads is made acts of faith, hope, and charity. On each small bead is said: "Sweet Heart of Mary, be my salvation." Each decade is concluded with: "Eternal rest grant unto them, etc."