God (Allah) says: “And it is not for any human being that Allah should speak to him except by revelation or from behind a partition or that He sends a messenger to reveal, by His permission, what He wills. Indeed, He is Most High and Wise. read more
Allah communicated with Prophets by messengers specially Jabrial (A.S). Only Hazrat Moosa (A.S) used to talk to Allah directly. This is because his title is Kaleem Ullah which means The one who talks to Allah. read more
As I understand it, you want to know how can communication between a physical (i.e. man) and a non-physical entity (i.e. God) take place. Such a communication necessitates some form of physical interaction between the two entities. read more