There are many benefits for developing a regular meditation routine. Perhaps one of the clearest and most straightforward methods of communicating these benefits is the analogy of the two jars as presented by Ernest Wood within his book Concentration: An Approach to Meditation (Page 95):
Concentration: An Approach to Meditation is a great book for learning the basics of meditation as well as techniques for greatly improving your level of concentration. At 154 pages this book appears deceptively short. In fact, to perform all the exercises within the book it will take approximately six months. When reading this book one should consider it as a course in concentration rather than just gathering information. That being said, if one read this book without performing the exercises, they would learn much, but in my opinion the real benefit is the information coupled with the concentration exercises.
As with the preceding jar analogy there is plenty within this book which will be useful to the individual with an interest in meditation, regardless of experience level. Furthermore, the concentration and meditation aspects are of value and will affect all aspects of your life.
Concentration: An Approach to Meditation may be purchased at the Celestial Source bookstore.