It's time ... to let go

Been carrying on this torch for the longest time
For something undefined, unperceptible
It could be a smile, a kiss, or just that warm touch,
That feeling of contact, physical or mental
I just don't know
Having harboured it for oh so long
It's diffcult to say "let it go"
But rational as I am
wherein the gain in holding on?
Some say that every thing fades with time
And so I've patiently bided mine
But perhaps because it was always an intangible
I just cannot seem to feel it's "disappearance"?
Unbeknowst to me, it surfaces time and again
And I am left with the feeling of wanting