Seth -- Errors can also be used as challenges

 "—errors can also be used as challenges, and those of you who are afraid to commit errors, or who are too afraid to face challenges, and therefore, never look upon an error as a deep or dark thing forever beyond repair, for from it challenges spring.

"And oftentimes, if an error is committed, it is the same thing as a physical symptom might be."

—[The Early Class Sessions: Book 2, Sessions 1/6/70 to 12/29/70; ESP Class Session, August 18, 1970]