If the sight of the blue skies fills you with joy, if a blade of grass springing up in the fields has power to move you, if the simple things in nature have a message you understand, Rejoice, for your soul is alive. - Eleanora Duse
Whenever you find yourself sad, spend time alone with nature. Go to the ocean. Go to the woods. Go to a garden. Go to a park. Breathe in the outdoors. Breathe in the peace. Breathe in the clean air that is without fears, without needs, without expectations.