Indeed It is only Shaytan that suggests to you the fear of his helpers, so fear them not, but fear Me, if you are (true) believers. Surah Al-'Imran 3:175}

When Shaytan inflicts a person with his touch it is blinding, and it obstructs the vision, but fear of Allah along with contemplation and submission to Him enables the heart to become connected with Allah. This state arouses the heart from neglecting His guidance so that those with taqwa remember, and when they make remembrance of Allah their vision is opened and covering is removed so that they become clear sighted.