Impact is All We Need

I am trying my best by spending all of my days and nights in research to make this happen. 

Let's say someone used your system, which helped them to sleep at night after passing countless sleepless nights, or maybe you helped them to overcome their severe psychological problems. Then, you meet one day with them for some reason (or maybe coincidentally), and they come to know you are the developer of that system (or maybe, they already know). Then, I think they will cry while thanking you. To me, those tears are the most expensive. Perhaps I am dreaming of seeing those tears.

[To be updated] 

Thanks for checking :)