In the realm of timelessness we discover God. If we have ever become aware of the moment when we understood something, we must have realized the extratemporal nature of the event. Extemporaneous means outside of time. Indeed, the gift of making extemporaneous comments hinges on our receptivity to inspired wisdom, reaching our consciousness from the realm of the timeless.
Any type of work can be meaningful. It is the spirit in which you do it that makes the difference.
Things just happen in the right way, at the right time. At least they do when you LET them, when you work WITH circumstances instead of saying, "This isn't supposed to be happening this way", and trying hard to make it happen some other way. If you're in tune with The Way Things Work, then they work the way they need to, no matter what you may think about it at the time. Later on, you can lookback and say, "Oh, now I understand. That had to happen so that THOSE could happen, and those had to happen in order for THIS to happen..." Then you realize that even if you'd tried to make it all turn out perfectly, you couldn't have done better, and if you'd REALLY tried, you would have made a mess of the whole thing.