In temples like Jagannath Puri and in many South Indian temples, Vishnu is flanked by two forms of Lakshmi: Sridevi and Bhoodevi. What is the difference between the two?

Bhoodevi is the goddess of the earth, from earth comes all our wealth. From within the earth come minerals; seeds germinate within earth and sprout above it to become either crops or trees and fruits and vegetables. On earth, we find pastures that nourish animal herds. Thus, for wealth, for Lakshmi, earth becomes very important. Therefore, in ancient India, the earth was visualised as a cow. The vegetation and minerals she produced was considered the milk from this earth-cow.