As Mowla said recently in one of his Farman, “Read books, whenever you can.”
I would highly recommend you to read this book, among few of Dr. David Hawkin's famous books.
Sir David Ramon Hawkins, M.D, Ph.D. was a nationally renowned psychiatrist, physician, researcher, spiritual teacher and lecturer.
Founding Director of the Institute for Spiritual Research, Inc. (1983) and Founder of the Path of Devotional Nonduality (2003), Dr. Hawkins lectured widely at such places as Westminster Abbey; Oxford Forum; Universities of Notre Dame, Michigan, Argentina, Fordham
and Harvard; University of California (SF) Medical School; Institute of Noetic Sciences; and Agape Spiritual Center (Los Angeles).
Interestingly, Dr. Hawkins quotes in one of his book;
“The insecure person is fearful and prone to jealousy, clinging, possessiveness, and attachment in relationships, an approach that always brings frustration. The purpose of these feelings is to bind and tightly possess the other, to achieve security by preventing
loss and, at times, to punish the other for our own fear of loss.
“Everything can be taken from a man but one thing: the last of the human freedoms—to choose one’s attitude in any given set of circumstances, to choose one’s own way”