I'm not Catholic, but I am a Christian; therefore I believe Lent is an important season. I also am in the camp that the practice of giving something up for *forty days can be a valuable practice.
This year, not only am I subtracting something from my life for forty days (salty snack foods), but I am also adding something (the core challenge).
I am finding that the practice of this addition can be just as much of a sacrifice and sanctifying as the subtracting, possibly even more so (Please pause to appreciate the alliteration in this sentence!). Fasting is an important spiritual discipline, but coupling that with building intentional good habits has been especially rewarding for me spiritually, physically and mentally.
*It actually adds up to more than forty since I continue even on Sundays when traditionally they are a day to take a break from your fast.