Friday fast in reparation
A small Friday fast — abstaining from meat, or from a comfort or pleasure — offered in reparation to the wounded Heart.
Why this practice
Friday has always been a penitential day in the Church. Reparation to the Sacred Heart adds love to penance: the small denial is offered not as an obligation but as a gift back to the Heart that gave everything.
The form can be light — abstaining from meat (long the universal Catholic practice), or from a particular comfort. Croiset would say: what matters is not the size of the fast but the love it carries.
How to begin
It is not the bread we withhold from ourselves that consoles His Heart, but the love expressed in withholding it.
— Traditional
A prayer for this practice
Sacred Heart of Jesus, this small Friday I keep for Thee. It is nothing compared with what Thou didst suffer on Friday; but it is what I have to give. Receive it as a kiss given to Thy pierced side.
Amen.