This is just a test

What word say's it all for you? 
One word.
___________

You fill in the blank. What one word says it all for you?
Is it your kid, or your faith or your job or your dream or your animal. What word would you use to sum up your life. The deepest place inside of you that guides everything you do? What or who is your compass? Who or what motivates you to do what you do?
It's a deep question.

This is a test you know.
Life
We have been given One life and time is running out.
What's the word?