1- Accuracy and deliberation makes our thought to be healthy

Accuracy, deliberation and scrutinizing thought are having an important role in correcting and cleaning the corrupted thinking and thought. We read in the incantation and supplication which Jibril (the closest angel to Almighty Allah) brought to the holy Prophet (peace be upon him and his progeny) so that the nation may benefit from it:

And with Your favor, You should make my guidance through inspiration, and with hope in You, You should shine my heart, and remove the deception of my enemy from my senses, and make my thinking to be sound through deliberation….[1]

If you induced struggle and deliberation into your thinking, your thought and reflection shall be sound and it will be at peak and then without your awareness the best thinking shall be coming towards you. Therefore, with deliberation the unsound thinking will be taken from you while it will be represented with sound ones. The demon is ousted while the angel comes in.