Sorry, Saundra, but we have no secret "temples" in the Catholic Church, no two-tier "temple recommend" memberships, and the only secret ritual we have is the sacrament of confession, for obvious reasons. And there's even nothing secret about what goes on there, except for the actual confession the penitent makes.
You can attend our most sacred ritual, the Mass, at almost any Catholic church on almost any day, though you can't receive communion. You'll find no strange stageplays muddling the words of Genesis, no special undergarments, no special handshakes, no blood oaths, nothing like that. We read Scripture, pray, and make the offering Jesus taught his disciples to make.
That's the "secret" in the "bowels" of the Vatican. Shocking, I know.
Bingo! placemarker
But I saw this MOVIE...