You don’t see the difference. I do, and I am asking anyone else if they can and what it is they see as different. Take any example you can conjure up from weddings, birthdays, opera, theatre, movies, etc.,. I think we can both at least agree that takkng part in a wedding is not the same as singing in a opera - not that I am denying any possible similarities (of which I could fashion a few easily enough.)
Greta mentions “ritual” yet the term is pointless if we’re using it both narrowly and broadly (in an everyday sense and a more religious context.)