A Due Meditation on Things Unseen and Eternal

Commenting on 2 Cor. 4:16-18, John Owen instructs the twenty-first century and our worldliness:

Not to faint under the daily decays of our outward man, and the approaches of death thereby, to bear afflictions as things light and momentary, to thrive under all in the inward man, are unspeakable mercies and privileges. Can you attain a better frame? Is there any thing that you would more desire, if you are believers? Is it not better to have such a mind in us than to enjoy all the peace and security that the world can afford? One principal means whereby we are made partakers of these things is a due meditation on things unseen and eternal. . . .

Without doubt, the generality of Christians are greatly defective in this duty, partly for want of light into them, partly for want of delight in them; they think little of an eternal country. . . . Men do not exercise themselves as they ought unto thoughts of things eternal and invisible. It were impossible, if they did so, that their minds should be so earthly, and their affections cleave so as they do unto present things. He that looks steadily on the sun, although he cannot bear the lustre of its beams fully, yet his sight is so affected with it that when he calls off his eyes from it, he can see nothing as it were of the things about him; they are all dark unto him. And he who looks steadily in his contemplations on things above, eternal things, though he cannot comprehend their glory, yet a veil will be cast by it on all the desirable beauties of earthly things, and take off his affections from them. 

 —John Owen, The Grace and Duty of Being Spiritually Minded (vol. 7 in The Works of John Owen; ed. William H. Gould; Carlisle: Banner of Truth, 1994), 318.