Folded hands signify being bound; even more, it seems to me: between folded hands there's no more room for anything else -- even for something that is just coming into being. But when the hands separate again after prayer, perhaps LORD, you can entrust them with something as a proof that everything comes from You.
The more Love one gives away the richer one becomes. Wealth finally becomes limitless, in fact, only when it has become naked poverty.