References

If you want to learn more, the following references may be helpful:

Regarding the experience of God:

Denis Edwards, Human Experience of God (Paulist Press, New York, 1983). 

Iyanla Vanzant, One Day my Soul Just Opened Up (Simon & Schuster, New York, 1998).

Regarding Jewish insights into God and man:


Rabbi David Aaron, The Secret Life of God: Discovering the Divine Within You (Shambala Publications, Boston, 2004).

Rabbi David Cooper, God is a Verb (Riverhead Books, New York, 1997) 

 
Also, Gerald L. Schroeder's books -- see below 

 Regarding spiritual wisdom across different traditions:

Timothy Freke, Encyclopedia of Spirituality: Information and Inspiration to Transform Your Life (Sterling Publishing Company, New York, 2000). 
 
Dan Millman, The Laws of Spirit – A Tale of Transformation 
(H. J. Kramer / New World Library, California, 1995). 

Joan Chittister, Welcome to the Wisdom of the World and its Meaning to You (William B. Eerdmans Publishing Company, Grand Rapids, 2007).

Yahiya Emerick, Rumi Meditations (Alpha Books, the Penquin Group, New York, 2008)

Regarding gratitude and insights about life:

David Steindl-Rast, Gratefulness, the Heart of Prayer: An Approach to Life in Fullness (Paulist Press, New York, 1984)

Also: www.gratefulness.org

Reconciling the Bible with science:
 
Andrew Parker, The Genesis Enigma (Dutton, New York, 2009). 

For a book review on this site, click here. 

Gerald L. Schroeder, God According to God (HarperOne, New York, 2009)

 Gerald L. Schroeder, The Science of God (Free Press, New York, 1997)

Australian readers may find good values at Fishpond which sells discounted books and delivers them postage-free.