Astarte (Easter) day, fertility goddess day, came to be celebrated by the Astarte temple priests impregnating vestal virgins on the temple altar. Their babies, born the following December, would then be sacrificed on the altar of Astarte the following Easter, and their blood used to dye eggs red in celebration of the arrival of the fertility goddess. Thus our ‘Christian’ tradition of Easter eggs.
So we can celebrate the traditions of men, incorporated into the church by those who diluted the worship of God with the worship of pagan gods in order to be ‘inclusive’ of pagan celebrants. Or we can celebrate the feasts of the Lord, who established His feasts as signs of His plans for us.