Apparently the queen believes that she has been chosen by God to be the Head of the Church, and therefore monarch. I don’t remember where I read that, but it did surprise me I must say. I wonder if it’s true.
Anyway, I don’t believe in the Divine Right of Kings/Queens, I should be surprised if anyone else does nowadays. However I do think monarchy is preferable to elected Heads of State, but as for The House of Lords, that’s a very different matter.