Holy Day Of Obligation December 8 2025. Rather than defining holy days by what’s required (mass attendance and a refrain from unnecessary work), we might think about holy days of obligation by what they offer: They also abstain from unnecessary works, “which.

The catechism of the catholic church explains holy days of obligation this way: Because of their special importance for unfolding the paschal mystery, certain days of the liturgical year are prescribed as holy days of obligation.