Many early Christians practiced sungazing. It's a form of breatharianism or inedia (extreme fasting), where you fully abstain from eating or drinking. There are many Christians who believe Adam and Eve were originally breathatarians and sungazers (there was no meat before the fall).

Ratan Manek achieved no eating or drinking for 211 days via sungazing. Nicholas of Flue, the patron saint of Switzerland achieved fasting for 19 years. There are other accounts of where people have survived for very long periods without eating or drinking because of sungazing. Sungazing is not only apart of eastern teaching, but is something everyone was originally doing. How it was done however became lost like most other ancient knowledge. If you look up the accounts of Christian mystics who lived for tens of years without eating or drinking. How did they do it? They did it through the sun.