Indeed the actions of man himself breed a profusion of satanic power. For were men to abide by and observe the divine teachings, every trace of evil would be banished from the face of the earth. However, the widespread differences that exist among mankind and the prevalence of sedition, contention, conflict and the like are the primary factors which provoke the appearance of the satanic spirit. Yet the Holy Spirit hath ever shunned such matters.

-Bahá'u'lláh