Marriage preparation

Almut and I have started reading together a book Saving Your Marriage Before It Starts: Seven Questions to Ask Before (and After) You Marry. We have only read the first chapter, but seems good so far. The first chapter starts with dispelling 4 myths of marriage:

1. We expect exactly the same things from marriage
2. Everything good in our relationship will get better
3. Everything bad in our relationship will disappear and
   
4. My spouse will make me whole.

While its obvious to us both that these are myths, it gave us some good discussion points!