I was raised with 12 years of Catholic education by Dominicans and Jesuits. A critical intellect, with a few exceptions, was highly encouraged. It has always been part of my faith to question, which eventually led me away from Catholicism. 

I agree that we each relate to God uniquely. If every individual were fully tested on their beliefs, no two would be in agreement. Yet I do not feel this is something we must seek to actively create; it is a simple product of our essence. The boldness would come in standing in that integrity of spirit or "to sin boldly" as Luther said. A radical dependence on grace, however, is the order of the day. But because this also seems to produce some truly looney ideas and practices, most Christians caution for a safety net or ground. This is, of course, almost surely self-defeating in realizing a profound relationship with Christ. It really does take a "leap of faith" which is not unlike that scene in one of the Indiana Jones movies: to literally step off a cliff and trust you walk onto God's hand.

I definitely agree about the Spirit of God ruining our life. Going along with the first paragraph, all supports to faith and being are gradually removed. We are not done mourning one thing when another is taken away, sometimes ripped from our grasp. The only way to maintain some sanity is to go where we being drawn: into the stillness of ambiguity. We come to see that paradox is the native tongue of truth. And we gradually become a means with ends, the only light a "lamp unto our feet" with just enough illumination for the moment, past and future remaining in blessed darkness. Turth is no longer anything that we hold and act upon but God's expression through us. As C.S. Lewis said, "The more God takes us over, the more our true selves we become." 

A human being fully developed, our final maturation, is to openly partake of the divine, to be "the light of the world. This is perfect humility, for humility is not the recognition of our smallness in a lowly comparison to God but the realization of our oneness in loving companionship with God. We live in the complete freedom of Christ, our heart a raw spirit of action and not a considered system of belief.