What Lenten practice will I undertake?
You may or may not observe Lent. This may be because you are or are not a practicing Christian. Either way (and this may be unorthodox to say) but I am of the mind that a Lenten-like observance is valuable to all of us, no matter our religious stance. It is valuable because it asks us to devote ourselves by denying ourselves.
This happens to be exactly what Christianity is all about. What is so striking about it, and about Lent in particular, is how entirely countercultural it is. The first will be last. The weak will be strong. The poor will be rich. Love your enemy. Thy will be done. All exactly the opposite of what we are told in the secular world.
Same with Lent. Abstain from the things you enjoy—not because you will look better or feel better but because it has nothing to do with you whatsoever. Devote yourself to a new practice not because your life will improve but because life will be less focused on you. (The fact that it will improve is simply a natural consequence of that re-orientation). Ultimately, Lent is a call to a radically different way of living, which pretty much of all of us need.
This brings us to the question of what Lenten(like) practice we might undertake. Whether or not we are a practicing Christian, whether or not we are making preparations for Easter, what specific things can we give up—or take on—that will shift our focus away from being so me-centric? What practices can we undertake that will orient us instead toward something bigger, more transcendent and more glorious than we can begin to fathom?