Sculpture executed circa 1300 A.D
"The passage of time was one of the main concerns in Mesoamerican society; thus, many depictions of its passage allude to different aspects of the Mesoamerican view of the cosmos.
The three faces depict three phases in which time and humans are closely related. The central face is jovial and full of vigor, referring to the time when individuals are during their most productive years in a society.
By way of contrast, the exterior mask has closed eyes, alluding to the opposite phase, death.
In between is a period of no less importance, the state that arrives with experience: old age."