For those who just need to engage in a discussion of something D&M ("deep & meaningful"), try The Book of Questions by Gregory Stock:

The Book of Questions may be the only publication that challenges and changes the way readers view the world, without offering a single opinion of its own. Posing 265 questions, The Book of Questions is bound to provoke hours and hours of thought.

Ask your friends. Ask your parents. Ask someone you hardly know. The Book of Questions gives you permission to ask those things that are too bold, too embarrassing, or just too difficult to ask by yourself. You will find questions of integrity; of sex; of what you would do for money; even things too personal to talk about out loud. Whether you use it as a tool for self discovery, or as a provocative way to stimulate conversation, this book constantly challenges attitudes, morals, beliefs-and it challenges you.

but maybe more usefully.. for couples especially, will be this 1000 Questions for Couples - The Book Of Question... :)