I'm after your heart

Jesus here I am your favorite one, what are you thinking, what are you feeling I have to know.
For I, I'm after your heart, I'm after your heart, I'm after you.....

As I was in worship yesterday singing these very words I felt the spirit of the Lord say to me "if you really were after my heart, you would be obedient to my Word."  UGH, I don't like conviction.  But it was true.
Lately I've seen or heard in my mind the verse 1 Samuel 15:22- 

Does the Lord delight in burnt offerings and sacrifices
    as much as in obeying the Lord?
To obey is better than sacrifice,    and to heed is better than the fat of rams.

I believe to obey the Lord is not just something we sing about, I believe that is an action word, something we do.  Do we give up what we want, our own desires, for what the Lord wants us to do?