Today, the Church prays for all those of her children who, in the purifying suffering of purgatory await the day when they will be joined to the company of saints. At no time is there accomplished in clearer fashion the twofold duty of charity and justice deriving from every Christian from the fact of his incorporation in the mystical Body of Christ. By virtue of the consoling doctrine of the communion of saints the merits and prayers of each one are able to help all; and the Church is able to join her prayer with that of the saints in heaven and supply what is wanting to the souls in purgatory by means of the Mass, indulgences and the alms and sacrifices of her children.