Everyone has shadows, some more than others, fears, tensions, insecurities, repressed anger, unspoken fantasies, unfulfilled dreams, behaviors you are not too proud of, etc.
Your mind can be clear and then somehow you notice that your life is having a negative on someone else's life.
Yes, that's a shadow too!
What you call perfection might be imperfection to others.
This is the yin/yang principle of life going in cycles.
The streams of night and day alternate and in this wheel of life, all things evolve in rhythms.
Wisdom is seeing these dynamics and playing with them.
You can get hit by an emotional storm and naturally play with these raging waves.
So much more to say on that one...
To summarize...
MASTER YOUR SHADOWS