"Sometimes your joy is the source of your smile, but sometimes your smile can be the source of your joy."
~ Thich Nhat Hanh ~
I noticed wrinkle lines around my mouth the other day from setting my face in a determined kind of resistance to life, and then I saw something online that said those lines were an indication of bitterness, and, not wanting that, I've been consciously setting my lips in a gentle kind of smile, and it's amazing how it changes the way my eyes feel, and my face feels, and my heart.
A smile on the lips soothes the soul.