I don't fully have a grip on WHY they celebrate December 12... but I do know it has something to do with Juan Diego's visions of mary... And the roses that apparently appeared.
The Mexican Catholics on this day... we december 11 AND 12... Celebrate Mary. They create these shrines, have huge parties... carry Mary status with them in little parade type things. Plus, we saw a ton of caravans to the basilica in Mexico City!
I wonder two things... what makes them want to worship Mary...
And I wonder what it would be like if we took all of that energy on worshiping a false god and redirected it to worshiping GOD! The world would be changed!