Greeting any Muslim with peace in a dream signifies goodness, safety, and relief coming from the person greeted. Giving the greeting of peace signifies good speech, good deeds, and corresponding goodness. Greeting a familiar or elderly person signifies planted trees and abundant fruit. At times, giving the greeting of peace signifies safety from an enemy, following the Noble Sunnah, and uprightness in one's affairs.
Seeing oneself shake hands with someone in the customary manner, greet him, and embrace him signifies pure goodness.
Seeing one's enemy greet the dreamer and also offer a gift signifies making peace with the enemy.
Seeing a king or ruler greet the dreamer signifies that Allah Most High will grant the dreamer insight and good prospects for the future. Passing by a group of people and speaking without greeting them signifies opposing the Noble Sunnah and committing innovations.
Seeing an unbeliever give the greeting as Muslims do signifies that person's guidance and becoming Muslim.