We usually sit close to the front during morning service, and since our worship hall is pretty big, voices reverberate all sorts of crazy ways. Sometimes, I close my eyes during singing, and imagine (it's not hard to imagine this) that behind me are not just my fellow congregants but a countless multitude of people in heaven belting out praise songs to God. I think of the sheer number, as well as of individual stories: loved ones I've lost who I'm now reunited with, the downtrodden and broken who are now whole, the unsung heroes now sheathed in glory.
There is much to glory in in this present day. But thinking about the world to come, that is far more glorious.