When I was at Bridging Minds, I had a mild epiphany. Pika carries this huge tote filled with things around- it weights a tonne. We were in her room (or someone else's room, i forget) and i picked up this set of markers, felt tip pens in every colour in a transparent case that came from her bag.
"Why the hell do you carry this around, Pika?! No wonder your bag's so heavy!"
"... makes me happy - :)"
and then my world spun on its axis a little and I thought Hell Yeah, it makes her happy, why not?
Absolutely. It makes me happy. It makes you happy. It needs no other explanation.