5182. There are circles into which recent spirits have to be inaugurated in order that they may be able to be in the companionship of others, and both speak and think together with them. In the other life there must be a concord and unanimity of all, in order that they may be a one; just as is the case with each and all things in man, which though everywhere various, yet by being of one accord make a one. It is similar in the Grand Man; and to this end the thought and speech of one must be in accord with those of others. It is a fundamental necessity that the thought and speech should accord together in every individual in a society; otherwise a discordance like a disagreeable grating noise is perceived, which strikes harshly on the minds of the others. Moreover, everything discordant tends to disunite, and is impure, and must be rejected. This impurity arising from discord is represented by the impurity with and in the blood, from which it needs to be cleansed. This cleansing is effected by means of agitations, which are nothing else than temptations of various kinds; and afterward by means of introduction into circles. The first introduction into circles takes place in order that the spirits may be accommodated together; the second is in order that the thought and speech may be in accord; the third is that the spirits may agree together as to thoughts and affections; and the fourth is that they may agree in truths and goods.