The days after Christmas are some of the most peculiar days in the liturgical calendar. In the midst of our celebration surrounding Christ's birth, we look to the example of the martyrs and forward to the cross.
St. Bernard has a beautiful sermon for the feast of the Holy Innocents, where he connects the three feasts, which don't appear to be connected in any way.
He then continues to explain the differences between them all, as well as their spiritual connections.
At first glance these three feasts may not seem connected, but in the light of the Gospel, they all refract a different light, showing us the way to eternal life.