A vast wealth of facts is stored in the treasure vaults of your mind, but there are certain inner compartments to which you have lost the combination.

[Sidenote:  Possibilities of Self-Discovery]

The author of “Thoughts on Business” says:  “It is a great day in a man’s life when he truly begins to discover himself.  The latent capacities of every man are greater than he realizes, and he may find them if he diligently seeks for them.  A man may own a tract of land for many years without knowing its value.  He may think of it as merely a pasture.  But one day he discovers evidences of coal and finds a rich vein beneath his land.  While mining and prospecting for coal he discovers deposits of granite.  In boring for water he strikes oil.  Later he discovers a vein of copper ore, and after that silver and gold.  These things were there all the time—­even when he thought of his land merely as a pasture.  But they have a value only when they are discovered and utilized.”

“Not every pasture contains deposits of silver and gold, neither oil nor granite, nor even coal.  But beneath the surface of every man there must be, in the nature of things, a latent capacity greater than has yet been discovered.  And one discovery must lead to another until the man finds the deep wealth of his own possibilities.  History is full of the acts of men who discovered somewhat of their own capacity; but history has yet to record the man who fully discovered all that he might have been.”

[Sidenote:  "Acres of Diamonds"]

You who are a bit vain of your visits to other lands, your wide reading, your experience of men and things; you who secretly lament that so little of what you have seen and read remains with you, behold, your “acres of diamonds” are within you, needing but the mystic formula that shall reveal the treasure!

THE MECHANISM OF RECALL

[Illustration:  Decorative Header]

CHAPTER III

THE MECHANISM OF RECALL

[Sidenote:  The Right Stimulus]

Somehow, somewhere, all experiences, whether subject to voluntary recall or not, are preserved, and are capable of reproduction when the right stimulus comes along.

And it is a law that those experiences which are associated with each other, whether ideas, emotions or voluntary or involuntary muscular movements, tend to become bound together into groups, and these groups tend to become bound together into systems.

[Sidenote:  "Complexes” of Experience]

Such a system of associated groups of experiences is technically known as a “complex.”

Pay particular attention to these definitions, as “groups” of ideas and “complexes” of ideas, emotions and muscular movements are terms that we shall constantly employ.

You learned in a former lesson that mental experiences may consist not only of sense-perceptions based on excitements arising in the memory nerves, but also of bodily emotions, the “feeling tones” of ideas, and of muscular movements based on stimuli arising in the motor nerves.