Is being at peace with your own belief proof of its rightness? What if your brother, your wife, and your father had all gone through the same process and each concluded something entirely different than you? If you all consulted "the church" and got different answers from different churches, how do you know who's right?
Truth is not subjective, it is objective, and the Word of God is Truth. If you have a mathematical equation to solve, are there many answers?