Finding My (Your) Passion

I am two months in to my sabbatical from work - more commonly known as 'maternity leave'. Lots of time at home prompts many things - an excess of daytime TV, more reading books, and a good amount of thinking and reflection.

A few influential things of varying importance:
-The birth of my own son (of course!). Bringing a human into the world! Incredible!
-The birth of many children from other friends, and the serious illness and/or death of friends or friends' family.
-Other people who are working on their passion.
>I was at the dentist this week and asked my dentist about his recent travels, since he is regularly travelling to other countries to complete dental work. He talked about how it is his real passion.
>My boss of two years at work recently left the company to go back to school to study atmospheric science and work on the environment/artic water cycle.
>I just finished reading Tony Dungy's book. He refers often to his goal in life which is to honor and serve God. Football is a means for him to do this, whether through the public eye providing the means to volunteer and speak for charities he believes in, or how his family is financially able to adopt children.

I don't think I'm dramatically askew from my passions with my current tasks but I am looking into how I can do more towards them.

What inspires you? What are your passions? What do you want to do for the world?