The power of right thought is more precious than the golden wedge of Ophir.... We need to place a high value upon the right control of our thoughts, for such control prepares the mind and soul to labor harmoniously for the Master. It is necessary for our peace and happiness in this life that our thoughts center in Christ. As a man thinketh, so is he. Our improvement in moral purity depends on right thinking and right acting.... Evil thoughts destroy the soul. The converting power of God changes the heart, refining and purifying the thoughts. Unless a determined effort is made to keep the thoughts centered on Christ, grace cannot reveal itself in the life. The mind must engage in the spiritual warfare. Every thought must be brought into captivity to the obedience of Christ. All the habits must be brought under God’s control. (HP 164.3) MC VC