Paramhansa Yogananda

There cannot be any excuse for not thinking of God. 

Day and night, rolling in the background of your mind, 

God! God! God!

Whether you are washing dishes or digging a ditch or working in an office or a garden —whatever you may be doing—inwardly say, 

"Lord, manifest to me!

You are right here.

You are in the sun.

You are in the grass.

You are in the water.

You are in this room.

You are in my heart."

And when great love for God comes in your heart, you do not miss anything; no matter what you have or do not have in this world, you nevertheless feel fulfilled. Divine love transmutes all material desires — even the longing for human love, that mortal passion which so often brings pain either from its fickle nature or because it is snatched away by death. Loving the Lord, you can never turn back to being satisfied by lesser loves. In Him you will find all the love of all hearts. You will find completeness. Everything that the world gives you and then takes away, leaving you in pain or disillusionment, you will find in God in a much greater way, and with no aftermath of sorrow. 

From Realizing God In Your Daily Life 

(Journey to Self-Realization by Paramhansa Yogananda)