"Labor that your minds may continually be prepared for such heavenly contemplations. If they are carnal and sensual, or filled with earthly things, a due sense of this love of Christ and its glory will not abide in them. Virtue and vice, in their highest degrees, are not more diametrically opposed and inconsistent in the same mind than are an habitual course of sensual, worldly thoughts and a due contemplation of the glory of the love of Christ. Yea, an earnestness of spirit, pregnant with a multitude of thoughts about the lawful occasions of life, is obstructive of all due communion with the Lord Jesus Christ herein. Few there are whose minds are prepared in a due manner for this duty. The actions and communications of most persons evidence the inward frame of their souls. They rove up and down in their thoughts, which are continually led by their affections into the corners of the earth. It is in vain to call such persons to contemplations of the glory of Christ in His love. A holy composure of mind, by virtue of spiritual principles, an inclination to seek after refreshment in heavenly things and to bathe the soul in the fountain of them, with constant apprehensions of the excellency of this divine glory, are required." John Owen