If you want to know the value of your home, put it up for sale and see what people are willing to pay.

If you want to know the value of your Avodas Hashem, check how much effort the yetzer hara invests to stop you.

If you see significant opposition, this is a sign that your Avodas Hashem is very precious.

~ R’ Yitzchak Hutner zt”l