"What's recommended is that if you have a good experience, don't get too excited. And if you have a bad experience, don't mistake it for a serious deviation or a sidetrack that you have to find your way back from. If you have a bad experience, just continue practicing as you were. In other words, whatever happens, just keep looking at your mind."

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What has happened to create this doubt is that a problem (such as a deep conflict or a bad experience) has been allowed to usurp God's place and become the controlling principle of life. Instead of viewing the problem from the vantage point of faith, the doubter views faith from the vantage point of the problem. Instead of faith sizing up the problem, the situation ends with the problem scaling down faith. The world of faith is upside down, and in the topsy-turvy reality of doubt, a problem has become god and God has become a problem.

— Os Guinness