"Our ordinary and reasonable service to God may actually compete against our total surrender to Him. Our reasonable work is based on the following argument which we say to ourselves, “Remember how useful you are here, and think how much value you would be in that particular type of work.” That attitude chooses our own judgment, instead of Jesus Christ, to be our guide as to where we should go and where we could be used the most. Never consider whether or not you are of use— but always consider that “you are not your own” (1 Corinthians 6:19). You are His." (from "My Utmost For His Highest")
You can have Mr. Chambers meddle in your affairs on a daily basis here