Good Friday is a unique day for Catholics for more than all the obvious Easter related reasons.
This is the day the Tabernacle sits empty. It is the only day when the Blessed Sacrament is not in the church revered and protected in its place at the altar.
All adornment is removed, covered , or extinguished. Altar cloths are removed. Candles are extinguished. Statues are covered in purple cloth.
The celebration of the presence of Christ is removed from the church. For one day it is emptied of faith.