Marriage rituals and ceremonies are necessary to get our attention, to get human attention. Nature has its own ceremonies and laws concerning marriage. Grow up--develop--and you need not follow ritual and ceremonies. Development precludes them. Become "angels" and rituals and ceremonies are no longer needed, but until then we need such things to get/catch our attention so that we realize/"wake to the importance/significance of" marriage.
Keiko: I'm supposed to be getting married Data. I should be happy, but I'm not. I just feel this weight pressing down on me.
"For when the dead rise, they will neither marry nor be given in marriage. In this respect they will be like the angels in heaven."
Bible, NLT, Mark 12:25, http://www.newlivingtranslation.com