Father, I want to know You, but my coward heart fears to give up its toys. I cannot part from them without inward bleeding, and I do not try to hide from You the terror of the parting. I come trembling, but I do come. Please root from my heart all those things which I have cherished so long and which have become a very part of my living self, so that You may enter and dwell there without a rival. Then shall You make the place of Your feet glorious. Then shall my heart have no need of the sun to shine in it, for You Yourself will be the light of it, and there shall be no night there. In Jesus' Name, Amen.
A prayer by A.W. Tozer, from The Pursuit of God
It is not what a man does that determines wether his work is sacred or secular, it is why he does it. The motive is everything. Let a man sanctify God in his heart and he can thereafter do no common act. All he does is good and acceptable to God through Jesus Christ. For such a man, living will be a priestly ministration. As he performs his never-so-simple task, he will hear the voice of the seraphim saying "Holy, holy, holy, is the Lord of hosts: the whole earth is full of his glory" (Isaiah. 6:3)
A.W. Tozer - The Pursuit of God (with thanks to N.K.)