My opinion has changed in this area, I do not believe this is just a 'numbers game'in that the more people we make Christains then we are only judged on the numbers "we are able to save".

Now I say the harvest is the benefit obtain from the knowledge of Jesus in each of our lives and how we affect  others.

The sowers are all people at present who are doing this work as well as in the past those, who have created a legacy of good works and left their messages of christianity in prays, writings and  hymns.

The reaper is God, who does use some people to assist Him but He determines our total affect on how we have grown in our knowledge of Jesus and how we have left the results of this knowledge for now and the future.  

To mankind and all living things, water is basic to our existence. The thirst we feel is due to our body needing to maintain its level of water.

Jesus talks of a different thirst which causes us to seek truth and the reason for our existance.

This different thirst, Jesus tells the Samaritan Woman is completely satisfied by a belief in him as "The Christ" and there would no longer be a need to seek further answers.