The spirit of this world originates with Satan, “the ruler of the world, ” and it is in opposition to God’s holy spirit.
وَكَيْفَ أَمْسَى ٱلرُّوحُ ٱلَّذِي يُرَوِّجُهُ ٱلشَّيْطَانُ مُتَغَلْغِلًا فِي ٱلْعَالَمِ إِلَى هذَا ٱلْحَدِّ ؟‏