This feast is to let us know how royal it is to shed our blood for the Catholic Faith, and to suffer anything so as to practice and profess it. The whole story of the Catholic Faith in the early centuries of the Church was the shedding of blood. From the year 36 to the year, 306, there were eleven million martyrs, men, women, and children, who shed their blood for their Faith. They were supported in their suffering by Mary, Queen of Martyrs. At their death they went immediately to Heaven, to meet her in royal grandeur, and to be her children, her servants and her subjects for all eternity.
The Virgin of Sorrows of Camas, Sevilla (source)
