It is a common fact that Al-Thiker is an emotional state in which those who fear God feel the pleasure of spiritual rapprochement to the all living creator and which is a state where a glim of guidance light rises on their hearts to direct them to the straight forward path.This paper deals with many subjects that are related to Al-Thiker in general and to the "mystic Al Thiker" in particular.The Linguistic and terminological origin of the word Al-Thiker is the best beginning that is found while searching for the Al-Thiker subject. Then the ways, types, lexes, features and benefits of Al-Thiker are tackled.Al-Thiker is the behaviour of man in which one avoids inattention, prevents oneself towards good deeds by the complete follow of the last prophet whose behaviour was directed by the Quran.Generally, Al-Thiker which includes the name of God, contemplation, prayer, reading the Quran and supplication, is the base of the mystic behaviour. The most common meanings of Al-Thiker are mentioning the name of God and contemplation.Al-Thiker may be either secretly or publicly.