You have a choice when traveling through life: you can put along working under your own power, grinding gears and wearing out every time you try to travel fast or far. Or you can chose to allow the Holy Spirit to lead you, and let His strength flow through you, giving you sustained energy for all that lies ahead. Overdrive is written  to explain all that the Holy Spirit has for you to travel through life, reaching the destination God has for you, without burnout or breakdown.