The third eye.
Not the third eye of ancient mysticism.
This is the third eye of that inflicts its dark opinions onto the host.
This third eye deceives.
It very well may be a second, dark personality.
This other negative silent watcher of all things waits for opportunities to emerge.
Silently it watches and waits for a chink in the armour of the host.
Stress. Stress tears armour, even in the best of us.
Recognize stress triggers and flee from them.
If you cannot flee physically then flee in your mind to wonderous beautiful places.
Sleep. Take a nap. Relax in the grass of a meadow and stare at the clouds.
Don’t allow this dark side ruin a beautiful day.
Not one beautiful precious second of a life should be spend brooding over negative things.
Close that third eye. Close your eyes and imagine it closed and silent and it will be.
You are in control of your own mind.
Be a lightbearer. Shine. Let light envelope the darkness, always.