Rav Meir Simcha in his Mishka Hackmah utilizes the…
Rav Meir Simcha in his Mishka Hackmah utilizes the Gra’s definition of din vcheshbon . That din refers to specific actions, cheshbon to opportunity, wasted time that one did not use properly. He explains Lo kidashtem – them means they missed it irretrievable chance to accomplish. Something great Kedusha therefore, is to act creatively and constructively in implementing the will of God. they missed an opportunity to spread Kedusha to illustrate Kedusha . This is a beautiful stunning interpretation.
— from Time