Sermon's point
"An idol, as we have seen, is any desire that has grown into a consuming demand that rules our heart; it is something we think we must have to be happy, fulfilled, or secure."
Source:
http://www.peacemaker.net/site/c.aqKFLTOBIpH/b.958147/k.4979/
Getting_to_the_Heart_of_Conflict.htm
To determain my idol:
What's my fear?
What's my trust?
What do I desire?
"You shall have no other gods before me"
-Exodus 20:3