"Death is a messenger sent of God; he knocks at the door, and what comes he for? To perfect the frame you are in, that you may see heavenly things more clearly. He is come to free you from that deadness you are burdened withal, that darkness you are entangled with, and to set you at perfect liberty in the enjoyment of those things your souls cleave unto. How, then, can your souls but bid this messenger welcome? Pray, then, that God would keep up your souls, by fresh supplies of his Spirit, unto a constant view of heavenly things. And you must do it by prayer, that God would give you fresh oil, to increase light in your minds and understandings."
Sermons of John Owen
Christian Classics Ethereal Library http://ftp.ccel.org/ccel/owen/sermons.iv.xxxii.html