For the husband is the head of the wife as Christ is the head of the church, his body, of which he is the Savior.Here we have the connection, the illustration is laid out for us. The relationship of Christ and the church is pictured by the relationship of a husband and wife. There are all kinds of examples that we could draw from this concerning Christ and the church: how there is love, communication and intimacy between the two. (I think this video helps to illustrate that point.)
There is also teaching to be directed at a husband and wife. Paul, as he writes this passage is driving in that very direction, but he will go back and forth between the two.
In this verse we see that the reason why a wife is to be submissive to the husband, it is because the husband is the head. More importantly though, we see why the husband is the head, it is because Christ is the head of the church. I can see how this could be difficult in some marriages, but it is important to realize that God ordains leadership.
Not all husbands are naturally good leaders, but God wants them to lead in the home. God's plan for every husband is to fulfill his role in the same way that Chris fulfilled His role as savior.
But before we get too much into that, let us first accept the roles that God has given and seek to fulfill them to the best of our ability.