Do you not say, ‘In four months the harvest will be here’?
I tell you, look up and see the fields ripe for the harvest.
The reaper is already receiving payment
and gathering crops for eternal life,
so that the sower and reaper can rejoice together.
For here the saying is verified that ‘One sows and another reaps.’
I sent you to reap what you have not worked for;
others have done the work,
and you are sharing the fruits of their work.”

We're so busy waiting, we don't see what's right in front of us. "The Messiah will come," but the Messiah is already here. The sower and the reaper rejoice together, although they have worked separately. The sower does not begrudge the reaper the harvest, but allows the reaper to gather in the harvest. 

Christ sends His disciples to reap what they have not worked for. They benefit from others' works, much as we benefit from the Mystical Body of Christ all lifting each other up (kinda like a lever). We cannot do everything alone. Really, we can't do anything alone. But some sow, and some reap, and we all rejoice together.

Sorry this "reflection" is so short. I'm really striking out on insights into this passage, so any thoughts you have on it would be much appreciated.

I'm praying for you!

:)