Smiling sadness

A smile
A smile that twinkles the eyes
Opens the whole heart right in front of you
The sadness
Where does this come from?
Why the depth of sadness?
That makes you reach across,
to wipe away the tears
Which falls unnoticed, invisible, and precious?
Oh' my little heart'
My precious smile
Let me hold you close
Oh' my precious smile
My precious heart