You are assuming a spiritual explanation for the origin. I am not…and I AM practical. The spiritual side may or may not be relevant to the origin. The materialistic explanation is definitely relevant. The best one can say for the spiritual aspect is that there may be a spiritual association with the holidays, but suggesting that the spiritual aspect is associated with the origin is nonsensical and myopic. You don’t have to agree.

Maybe it's this and that? Aren't all things spiritually related in some way? That said I prefer the Mayan wavespell calendar. Much more accurate for spiritual purposes.