hadith
3980
۞
The Prophet (SAWA) said, 'Spirits are pre-mobilized groups [from their conception in the pre-material world, and by virtue of their nature (ed.)] in that they are mutually attracted to other spirits that they are in harmony with, and they mutually repel those that they clash with.
رسولُ اللهِ (صَلَّيَ اللهُ عَلَيهِ وَ آلِهِ): الأرواحُ جُنودٌ مُجَنَّدَةٌ ، فما تَعارَفَ مِنها ائتَلَفَ ، وما تَناكَرَ مِنها اختَلَفَ.