A Spiritual Exercise from Buddha

Hello,

This is from the first chapter of a book called Messengers of God by Micheal Edward Owens. I found the first chapter here.This chapter was helpful, and useful for me. Here is the exercise at the end of the chapter. I hope this helps someone out there.
God bless
It is useless to attempt to exert one's ego in a
transient world where all that is without heart
and soul will melt away like ice in the sun.
And so, let us begin our contemplation in this
way:
1. Imagine that your mind is a block of ice
floating on a stormy sea. Say to the sea,
"Be calm!" and wait until it abates into
stillness.
2. Now watch as the sun blazes through
parting clouds and melts the cold
hardness of your mind until you are free
of it and left alone with your breathing.
3. Slowly breathe in and out, and say
aloud, "God, free me from myself to be
one with your heart."
4. Now rest with these words and feel
their reality. What do such words mean
to you? Do they make sense, or do you
want to argue with them?
5. If you want to argue, go back to the ice
block on the sea and begin again, for the
non-power cannot take hold until it is
melted from your mind. This is a
transitory world of Illusion, my dear
ones, do not make it more than it is and
do not waste your time with futile
exercises of the ego.
Seek the greater power of enlightenment
within you that will unite you with God's
grace and mercy. Be a light unto the world -
- take not from your brethren, but GIVE to
them all that is in your heart and soul to
give. That is real -- that is TRUTH.
I leave you now with my undying love and devotion.
~ Siddhartha Gautama Buddha

There were a few errors in the link posted above. Here is an updated version.