Getting married is a big step—they don’t call it taking the plunge for nothing. The person you choose as a life partner will, in one way or another, affect every aspect of your life: your mental health, your peace of mind, how you get through tragedies and celebrate triumphs, how your children (should you choose to have them) will be raised, and more. The weight of these aspects of your life, not to mention the countless others you’ll share with a partner, makes the advice to “choose wisely” seem like an understatement.