There is what I think is an inspirational yet simple Rashi on this weeks Parsha which has connections to Elul. See if you can work out how.
The mitzva of shiluach Hakan (sending away the mother bird) is one of the many mitzvos brought and in the Posuk it says you get a long life for it.
Rashi says on this if we see by a relatively easy mitzvah we get long life then all the more so a more difficult mitzva!.