Not through romance, not through affection, not through affinity, not through compatibility, not through like-mindedness, not through like - but through love, yes. The trouble is we don't know what love actually is - we are individual beings, but we are relational beings . . . love is the thing, the mechanism, the truth that unites us together. Authentic Christianity tells us that when a couple is joined together in love, God counts them as one . . . not as two individuals that are really, really close, but as one creature. The whole point of Christianity, the whole story of the Bible, the whole message of the gospel is the work of God in uniting us together and uniting us to Himself . . . and He tells us the how this unity is manifested - "love, the perfect bond of unity". Love provides not merely happiness, but joy and peace and rest.