When the celebrant takes out a particle of the prosphora for a brother who is living, "because it is placed near the eucharistic Bread, when that becomes the Body of Christ in the course of the Liturgy, the particle too is immediately sanctified. And when it is placed in the Chalice, it is united with the holy Blood. That is why it transmits divine grace to the soul of the one for whom it is offered. So a spiritual communion takes place between that person and Christ. If the person commemorated is among the godly, or those who have sinned but then repented, that person receives the communion of the Holy Spirit invisibly in his soul. - St. Symeon of Thessaloniki