An activity can be hard to do when a part of your identity feels threatened.
Without realizing it, the success or failure of what you undertake – big or small – endangers the way you see yourself.
The part of you attached to the outcome becomes anxious.
It's afraid of facing a reality it wouldn't like. So it sabotages your efforts.
Yet at the source, it's often that same part of you that wanted the action. There was something to prove, an aspect of yourself to assert, and a small inner voice whispered that the only way to get there was to take on this challenge.
If you could examine it in broad daylight, you'd see that the whole endeavor has only one purpose: to prove something. To others and to yourself.
The resistance you feel comes from this ambivalence: a challenge built on an internal tension, one that brings nothing in case of success, but threatens your identity in case of failure.
Many actions in a day follow this pattern.
Small battles we fight with ourselves because some parts of us need and fear to exist at the same time.