Here is a quote from Frederica Mathewes (an Orthodox Christian) on fasting and transformation, during Lent or any other time:
"Everybody wants to be transformed, but nobody wants to change. If you
truly want to be transformed you have to admit that you need to change.
That’s called humility, recognizing that there is wisdom in the whole
body of Christ that’s greater than your own personal short stock of
wisdom. As we trust ourselves to these ancient traditions, as we join
our brothers and sisters in the faith going back 2000 years, we keep
the same fast with them, but we’re also going to share in the glory
Praying old prayers, somebody else’s prayers, has always been a humbling experience for me. I am submitting myself to someone else’s wisdom, to words that did not originate with me. I just trust the words that the Holy Spirit gave to another person, even if I don’t fully understand them yet.
I think I need to start thinking about fasting the same way (trusting the wisdom of the whole Body of Christ more than my own personal stock of wisdom), because it’s so easy for me to talk myself out of fasting. I love the idea of it, but it’s the practicing of it that trips me up. But if I can say "I don’t understand fully what this strange discipline is all about, but I am going to trust the wisdom of the whole Body of Christ, down through history, who have always practiced fasting…" then perhaps I’ll find the motivation to just keep participating in it, in order to find what they found.