Yes. The people are rather dependent on the center of the religion.

[It isn't too difficult to take the other's expression that as something of disbelief. Ion isn't able to ask Tyr to believe him what he is saying, in the end. Though that may be of something of help if he did but things certainly vary from each world. A whole planet looking at something for various means does sound unrealistic and frightening from where Ion has been standing for the past few months.]

You are more than likely correct but it does not deny that the holiday has a root of sorts.