Smiling

I found myself smiling today
But I wasn't really sure why?
Was I laughing at myself?
Or the madness all around?

May be I recalled some incident
Remembered someone long lost
Or may be I'm now forgetting
All my dark clouds I had above

But why on earth should I need
A valid reason for a wide grin
Is it a sign of emerging insanity
Or it's now that I'm finally sane?