1074 The Relations of Mind and Matter. [ November, 
modes of energy necessarily assumes similar conditions. The 
combination of energy without produces an equivalent combina- 
tion of energy within, and the mind takes on characteristics of 
organization resembling those of the bodies acting upon it, pre- 
cisely as the photographic plate may be said to assume surface 
characteristics resembling those of the bodies to whose emitted 
‘energies it has been exposed. 
And this modifying influence is not exerted solely during the 
life of the individual, but is also an element in the hereditary 
conditions of the organism. It has been exerted throughout the 
‘whole phylogenetic development of the individual. The leverage 
‘of external energy is not exerted upon each mind separately to 
the production of changes in an original rigid substratum, but 
this substratum itself has been organized under the influence of 
such energies, from its origin in the earliest germ of psychical 
existence, becoming steadily more complex under the incessant 
play upon it of the energies of the universe. It seems to follow 
as a necessary consequence that our conceptions of nature must 
‘represent actual conditions, and that the whole mental organism, 
down to its: inmost center, has been molded by external nature, 
and is an exact reproduction of nature to the extent that it has 
‘come into contact with it. 
But this only represents the mental conditions in part. The 
mind has some directive control of its own forces. These inter- 
‘act, combination of mental conditions takes place, and results 
‘arise which have no counterpart in external nature. These, in 
‘their turn, exert a leverage on external substance, and forms are 
produced which exactly represent the ideal — of the mind. 
The mind molds nature into its own image? This mental com- 
1 The molding influence of the mind upon outer nature, through the wpa 
“in matter of its ideal images, has a parallel in the influence exerted by th e mind 
-upon the body. We are all aware how the facial expression comes to indicate the 
character of the mind, and varies in accordance with mental variations. axe: mind 
have had any influence, simply through mental faith in their efficacy, and deat 
followed a mental image of mortal i injury, as in the celebrated case of the fictitious 
‘bleeding of a French criminal. Very marked instances are those of the appearance 
_ „Of the stigmata, or the wounds of the crucifixion, in the case of St. Francis eras 
and oe zealots, apparently through long mental dwelling upon the idea 0 
the on. The credibility of these is accepted as probable by good authorities, 
‘anil the ulcecous effect ascribed to mental influence on the capillary ci circulation 
the vaso-motor centers. See “Influence of the mind upon the body '™ 
disease i pere M. D. 
