You know you have mastered a soul lesson when the circumstance has not changed but the way you respond has. This is true energy self mastery.
Loving What Is: Four Questions That Can Change Your Life by Byron Katie
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A thought is harmless unless we believe it. It’s not our thoughts, but our attachment to our thoughts, that causes suffering. Attaching to a thought means believing that it’s true, without inquiring. A belief is a thought that we’ve been attaching to, often for years.