God designed men and women with fundamentally different ways of thinking and processing life, and understanding these differences is key to a thriving marriage. Biblical submission is mutual - both spouses submit to each other out of reverence for God. Husbands are called to love sacrificially like Christ loved the church, while wives are called to respect and trust their husband's leadership. Marriage requires leaving parents to create a new family unit and working through issues together as a team. Like a roller coaster, marriage needs momentum and maintenance to navigate life's ups and downs successfully.