What fuels my fire?

I was reading John this morning, the passage about the vine and the branches. John 15. “…he who abides in Me and I in him, he bears much fruit; for apart from me you can do nothing. If anyone does not abide in me, he is thrown away as a branch, and dries up; and they gather them, and cast them into the fire, and they are burned.” (verses 5-6). I started thinking about fire and passion. I like to think of fire as a metaphor for passion. Passion can be fueled by many things. But there is only one passion which will produce good fruit. What is the underlying passion in my life? Is it a pure and holy passion to love God with all of my being and to follow Him all the days of my life? Or is that passion overshadowed by my drive to ‘prove myself’? And if the overriding passion in my life is that need to prove myself then I am not abiding in the vine and the fruit that is produced is not good fruit, but fruit born out of my own selfish desires. I want to abide in Christ. I want to produce MUCH FRUIT. If I’m lacking peace and not producing fruit, maybe I need to change fuels.