Take this photo for example and how the fog sets the mood and tone of the scene. The lamppost is visible yet the scenery behind it cannot be seen due to the dense fog.
Ones thoughts can do the same. If clouded, thoughts can change the perspective or outlook. The dense fog is seen but the lamppost, standing in the forefront, cannot. The old adage of seeing the glass half empty or half full applies here.
Here's to seeing the lamppost in the fog!