breton,

DB definitely works. Just because it may not help us to save our marriages, it helps us to become better people.

In addition to your observations, here are a couple of mine:
- It helps with relationships outside of marriage - family, friends, work relationship

- It teaches us to take care of the things we control

- It reminds us to do things that make us happy

- It helped me to develop an appreciations for all the blessings I have in my life

IMP