Variation of the sayings, “if it ain’t broke, don’t fix it," or, "go with what you know." An attempt to keep a person grounded. Don't try to get all crazy, extravagant, and lofty knowing you're a simple person.
You don't know anything about eating exotic fruits like papaya or star fruit. You're a basic muthafucka eating apples and grapes.

When you eat dirt for the first time and leave your family to build a shack in the woods