Here is an appetizer:
I used to believe the only way to follow God wholeheartedly 100% was to either be a missionary or to be in "full-time ministry" or to "have a ministry" (a paid or fundraising-supported function within a Christian organization, ministry or church). I wouldn't have articulated it that way, and if someone had articulated it to me that way, I wouldn't have intellectually agreed. But deep down, this was my functional paradigm. This belief was affected by Hellenistic dualism and its false dichotomization of sacred from secular.Please check out her whole post. You will be glad that you did!