The friars also sought to impart Catholic doctrine in ways that the people would understand and embrace.
They introduced the piñata, shaped like a seven-pointed star (each point representing one of the seven cardinal sins), filled with treats. They taught the natives that the stick they used to break the piñata was like the power of God to overcome sin and the goodies that fell out were the rewards of resisting sin. The piñata has certainly endured, and Mexicans know the symbolism even if that was lost as the piñata crossed the border. This sculpture of a blindfolded friar striking a piñata is in Acolman, near the monastery.
My interest in this topic was piqued on our first trip to Mexico in 1972 when I saw a cross in front of the church in Tepotzotlan. A coiled rattlesnake was carved at its base. The rattlesnake is a sacred symbol associated with Quetzalcoatl, the god legend said would return some day; Moctezuma famously thought Cortes might be that god, a belief with disastous consequences for his people.
That cross was the first of many examples of syncretism, the melding of religious beliefs. As native artisans built the churches and carved the symbols of Christianity, they included their own sacred symbols. Was this encouraged by the friars? These mixed symbols are so ubiquitous that I think the answer is yes. And Mexican Catholicism is rich with customs that point to a pre-Christian origin.
Months later, I visited the Antiguo Colegio de San Ildefonso in Mexico City. This mural by Orozco in a stairwell of the school shows a friar embracing an emaciated indigenous, a moving image of the conquest.