There's absolutely nothing whatsoever religious about this wedding, a purely legal civil ceremony.
The bride wanted more than anything, to be married outside, in a garden, out in the country, surrounded by their friends.
The civil marriage laws here offer an interesting option that many people use, including this marriage … which is, you can chose who marries you! You simply go where you get the marriage licence, apply the name of the person you wish will marry you, your sister, brother, mother, best friend etc. and the government give a licence for that day, that wedding, that person, to officiate the wedding. In this marriage, the person performing the ceremony is the groom best friend from ever.