Lost without you

A smile is all that I would need to see,
lighting your face from deep inside your heart.
So bright that light would seem to dreary me,
whose eyes ne’er saw such beauty in the dark.
A laugh is all that I would need to hear,
shining gaiety from your eyes and from your cheeks.
Such happy sounds would long sound in my ear
And there remain for many days and weeks.
But brief they would seem should you go away
and dull would they sound here in my head.
With ev’ry hour lost, ev’ry passing day,
it would seem to me that love itself were dead.
Stay by my side forever, light what’s dark.
Never leave me senseless, please, dear heart.

Author notes

Any ideas for the title? it sounds ridiculously common and I don't think it reflects the true emotion of the poem at all but i really can't think of anything else. Also, any ideas for a replacement for 'dreary' in line 3? I want something to compare "my" darkness to "your" light.

When I wrote this I had really bad block with my novels, but I was kind of overloaded with emotions, so I'm hoping it's quite strong in that sense. Especially seeing as the person I wrote this for will probably never know...