, but its abuse that is dangerous--perversion and excess are
as injurious in this direction as they are in others, whereas temperate
and healthful exercises are strengthening and exhilarating. If you feel
'run down,' decline to act. If you feel that the circle is inharmonious,
or that the sitters are depleted and exacting, refuse to sit. If you
feel that you are tired, and feel weary and debilitated on the day
following your seances, you may be sure that you are sitting too long,
or that you require the help of a larger circle of congenial friends to
supply the requisite psychic force for your further development."

Self-Protection for Mediums.

Another writer says on this subject: "Mediumship occasionally acts in
such a manner that it becomes a stimulant to every organ and function of
the system, and the individual becomes excited, nervous, and irritable;
hence, the greater the acceleration of physiological functions as the
result of psychical influences upon the human body, the more need of
caution and restraint in every department of physiological life." But it
must not be understood that the proper practice of mediumship is harmful
and not conducive to good health. On the contrary, as a writer has said:
"We consider the highest degree of physical health perfectly compatible
with the best manifestation of mediumship." Another writer has well
said: "If you are not robust enough, if you have not sufficient
knowledge and self-mastery to use your will and maintain control over
your psychic self; if you are unable to guard against the adverse
emanations or the drawing power of others, you had better take lessons
in concentration and psychic self-protection; and until you understand
the art of self-possession, refrain from attempting to cultivate your
sensitiveness. It will never do for you to be 'too sensitive'--be
natural, sensible, and strong."

Danger in Indiscriminate Magnetizing.

Another point against which the medium should guard himself, is that of
allowing others, indiscriminately, to "magnetize" him to "aid his
development" or to "increase his power." Mediums, particularly while in
the psychic condition, are very sensitive and susceptible to outside
mental influences. And for this reason they should be particularly on
guard against allowing themselves to be "magnetized" or influenced
psychically by persons of whom they know nothing. Otherwise, the medium
not only places himself under subjection to the men