Enough self-imposed suffering can efficiently exterminates all insincerity within yourself.

If you feel you have some self-deceit, or you're uncertain about something extremely important, if you're just telling yourself stories, or if it's truly as such, employ suffering. Leverage suffering.

There's so many ways to suffer in a healthy way. For some important questions even some unhealthy suffering is ok.

One of the only ways to absolutely use the maximum of your present capacities, is to employ suffering.