Now when most people hear that the most important commandment basically tells them to not worship any other gods they are relieved. They are relieved because they know for a fact that they don't worship any weird animal creature idols, or practice witchcraft.
The thing which they are forgetting is that sometimes 'worshiping' another 'god' can take many forms.
It is easy getting used to 'worship' something such as money, because of the instant gratification which it brings. This is often the case with things which humans fall subject to 'worshiping'.
But what is the big deal, why can I not pursue things such as money, It's not like I am too obsessed with it.
Well that would be where the second part of the most important commandment comes in.
It is very important to be able to identify these false 'gods' in your life and deal with them as soon as possible. Deal with them, and you will be able to devote more of yourself to God.