How Does Satan Influence Humans?
Is that shaitan a kind of abstract feeling or a metaphor for iblis?
Do you mean iblis is present with all the human beings to communicate with their inner selves?
The Qur’an tells that before iblis came into the scene the the angels had recognized that man will make fasad in the land and shed the blood. Quran tells us that God has inculcated good and evil in human nature. It is not iblis who kick strated it. He and his colleagues are just stimulus.