And she never could remember; and ever since that day what Lucy means by a good story is a story which reminds her of the forgotten story in the Magi… - C. S. Lewis

The Christian idea of marriage is based on Christ's words that a man and wife are to be regarded as a single organism - for that is what the words 'one flesh' would be in modern English. And the Christians believe that when He said this He was not expressing a sentiment but stating a fact - just as one is stating a fact when one says that a lock and its key are one mechanism, or that a violin and a bow are one musical instrument.

Aslan: You doubt your value. Don't run from who you are.

...wickedness, when you examine it, turns out to be the pursuit of some good in the wrong way. You can be good for the mere sake of goodness: you cannot be bad for the mere sake of badness. You can do a kind action when you are not feeling kind and when it gives you no pleasure, simply because kindness is right; but no one ever did a cruel action simply because cruelty is wrong — only because cruelty was pleasant or useful to him. in other words badness cannot succeed even in being bad in the same way in which goodness is good. Goodness is, so to speak, itself: badness is only spoiled goodness.