Pain-

It isn't always a thorn in your feet,
Or the throbbing ache from an overused mind,
Nursing a starved heart.

Fear-

It isn't the Boogeyman in your closet,
Or the silence left behind by a slam of the door,
With his parting words.

Sadness-

It isn't crying into your pillow at night,
Or the broken pieces of a family photo,
Shattered on the floor.

Pain is invisible.
Fear is amiable,
Sadness is insatiable.