“[The Medrash Rabba states] ‘Nothing in this world is as beloved (chaviv) to HaShem as sheluchei mitzva — people who are sent on a mission to do a mitzva — who give their all in order to accomplish their mission.’

The Chiddushei HaRim… say that each one of us can fill this beloved role of being a shli’ach mitzva [by viewing] ourselves as having been sent to this world with the express purpose of carrying out the will of HaShem — and to conduct ourselves accordingly…

‘Every person is created to do a tikun (a task that improves the world) for which he is uniquely qualified, and which only he can do.'”