Toltec legend had the seeds brought from Eden to by Quetzalcoatl, the Toltec king whose job it also was to teach mortals how to cultivate various crops.
According to the Aztecs wisdom and power came from eating the fruit of the cacao tree.
What was the value of chocolate in exchange for currency?
Central America (circa 500-1000 AD):
1 Zontli = 400 cacao beans
8000 beans = 1 Xiquipilli
Chocolate has been valued for a long time and is still in high demand.