Olmec religious activities were performed by a combination of rulers, full-time priests, and shamans. Most homes probably had a small garden of herbs and basic foods.
Whenever it was introduced, it soon became very important: one of the Olmec Gods is associated with maize.
These sites include:  Tlatilco and Tlapacoyamajor centers of the Tlatilco culture in the Valley of Mexicowhere artifacts include hollow baby-face motif figurines and Olmec designs on ceramics.
The first great Mesoamerican culture, it had been in decline for centuries before the arrival of the first Europeans, therefore, much information about the Olmecs has been lost.
The fact that these giant sculptures depict only the head may be explained by the belief in Mesoamerican culture that it was the head alone which bore the soul. We're uncertain, but it's believed that they may have been early adopters of the complex religious system that the Mayans and the Aztecs would use.
The Olmecs had a rich society, traded with far away peoples and ate a wide variety of foods did they pioneer some dishes of Aztec food?
The jade has been worked to represent a were-jaguar creature using only jade tools and then polished, perhaps using a jade abrasive. The constructions and monuments of the Olmecs, as well as the sophistication and power of their art, make it clear that their society was complex and nonegalitarian.
The ruler often wears a protective helmet from war or the ballgame and sometimes show the subject with jaguar paws hanging over the forehead, perhaps representing a jaguar pelt worn as a symbol of political and religious power. For the next years La Venta is the cultural centre of a large region, trading with much of central America.
The rulers seem to have been the most important religious figures, with their links to the Olmec deities or supernaturals providing legitimacy for their rule.