Ecclesiastes 4:11 Again, if two lie down together, they will keep warm; But how can one be warm alone?
When God created us, He created us as man and woman, as companions. This was not just for reproduction but for so many facets in life.
God knows how much we do need companionship and how much more we can do when we are with another Christian rather than trying to go forward alone.
If we can get a spark out of two dull looking objects by hitting them together, then imagine how much God can get out of us when we team up with another Christian; and how much more when we are put together with the right person!