The reception of the Stigmata by the saints is an intensified calling to accomplish what is common to all Christians: to offer our sufferings in union with Christ and thereby participate in the redemption of humanity won for us on the Cross. It is a living out of the Passion of Christ in the particular circumstances of a person's life, offered for the conversion of sinners and a participation in Christ's act of reparation on the Cross. This is among the reasons why St. Francis is a patron saint of reparation.
"Now I rejoice in my sufferings for your sake, and in my flesh I am filling up what is lacking in the afflictions of Christ on behalf of his body, which is the church." (Col 1:24)
SISTERS OF REPARATION
"Whatsoever you do, do it from the heart, as to the Lord, and not to men: Knowing that you shall receive of the Lord the reward of inheritance. Serve ye the Lord Christ" Colossians 3:23-24.