Where the Lord is, there is fire.
Those who Love Him and have determined to serve Him, find that the flame of the soul does not go out. There is motivation, even when the reason is not see. There is determination even when it seems the body can not move. There is power in the experience of weakness.
The fuel is the Word of God. And, fellowship with those who love Him and are called according to His Purpose.
The fire burns brightly in prayer and in turn brings a hunger for the Word and for those who share the pursuit of God.
Those who have no fire do not recognize it. Those who taste the sweet burning of the Holy Spirit within crave each other and seek each other out.
It takes one to know one.