The manifestation of rhythmic harmony often materially aids in the generation of psychic power, and the consequent production of advantageous conditions at the circle. Many circles are opened by having the several sitters indulge in harmonious rhythmic breathing for a few minutes--all breathing in unison--in order to produce this condition of rhythm. Those who have never practiced this unison of rhythmic breathing will be surprised at the consciousness of psychical harmony which may be produced in this way among a number of persons gathered together in a circle. This principle of RHYTHM is what is really involved in the call of many spirits for singing at the beginning of a seance. In singing there is a certain unison and rhythm unconsciously observed, and it is this rather than the air or words of the songs which produces the desire conditions. A writer states that upon one occasion a manifesting spirit said: "It isn't NOISE that I want; it's HARMONY! If you cannot sing, you can at least count out loud, and count altogether--THAT may give us the right vibrations." That spirit had the right idea, and one which it would be well for all sitters to remember and put into effect. Vibration is the secret of all things, and rhythm is the measure and spirit of all vibrations; therefore, the very HARMONY of a circle may be said to be rhythmic. There is a great truth involved in these statements, and you will do well to ponder over them. Retarding Factors. It should be almost unnecessary to state that haste, hurry and impatience are retarding factors in a spiritualistic seance; but, alas, too many persons seem to be totally unaware of this important fact. We call your attention to the following remarks concerning this point, the same having been made by a writer on the subject who himself is a medium of extended experience. He says: "Impatience and anxiety are disintegrating mental conditions. People who are all the time looking at their watches and thinking, 'Oh! I wish they would hurry up.' 'Oh! do be quick, don't keep us here all night, we shall surely miss our train,' etc., are disturbers of the peace, and break the conditions which require harmony and repose. 'We have found out that we cannot hurry them,' said a lady who had enjoyed much experience in circles; and consequently, when you are sitting for different phenomena, you need to have plenty of time and be prepared to sit good humoredly for hours, if need be, to see it through; and then results are likely to speedily ensue; whereas the more you try to hurry, the more anxious you become, the less likelihood is there that you will secure results at all. You can surely realize that hurry, impatience, anxiety, intense expectancy, fear and suspicion must of necessity disturb the conditions and prove inimical to the efforts of the spirit operators to present clear and convincing demonstrations of their power and identity." Reasonable Demands of Spirits.