Sorrow drips into your heart through a pin hole.

It does, doesn't it?

If it comes all at once, we call it shock.

If it comes in waves, we call it grief.

But when it drips into your heart, it's sorrow.

Keep yourself occupied and the "tup" "tup" sound it makes is barely audible.

Have too much time to think, and the sound overwhelms you, pushing everything out and keeping locked in a world of self pity.

Sorrow. Drips.