Can you do the mitzvah for the sake of the reward?
Understanding the reward for giving charity.
Can you learn Torah while standing on one leg? Understanding how loving your fellow Jew, helps avoid reincarnation. לע"נ שרה מרים בת אברהם
Did you buy your wife some jewelry lately? Understanding how to acquire and retain wealth. לע"נ שרה מרים בת אברהם
Yacov's encounter with Menashe and Ephraim.