Since we are born in ignorance, it's the starting point for each of our journeys even if many move away from it. Some return while others never do though even these remain 'agnostic' towards leprechauns and such. Eventually we end up in the same state of ambivalence and uncertainty as when we began.
The journey is what makes a life and if yours contains a positive or negative belief in anything that's fine - so long as it causes no harm. But it's temporary and indulgent and we all end up the same anyway. For the greatest amount of time WE ARE ALL AGNOSTIC.
Fic