Having nothing better to do right now, my first question to you would be: Why are you asking this question? Does it really need a "definition"? I see on your avatar that you joined the forum in 2017 and also participated actively in forum discussions so you must know that most discussions about religious aspects quickly veer off the factual and go down the path of expressions of personal opinion and that will be against forum rules.
I'm too lazy to look it up but I think both of the large Christian Churches (Catholic/Protestant) teach that you cannot undo your own baptism. Furthermore, once baptised as a small child and growing up in your individual family and church community environment, you may or may not only fashion your personal religious belief and refashion it again and again or distance yourself from it - you also absorb a lot of cultural elements and cultural-historical knowledge specific to all this. It becomes part of you. Which is why you may view aspects of historical or contemporary pilgrimage traditions and expressions with different eyes from those who don't share this background.
And now I'll leave it at that. However, I find the content of
@Faye Walker's long contribution more essential to the article and more worthy of exploring than her last sentence which I perceived just as a bit of a personal touch.