The human brain which is one of the most complex organic systems, involves billons of interacting physiological and chemical process that will give rise to experimentally observed neuroelectrical activity, which is called an electroencephalogram (EEG). Many researchers have investigated the effect of various events to the EEG signals such as meditation and classical music. From their analysis result, they claimed that meditation and classical music can help person in relax conditions. This study is performed in order to extend the research findings of the effect of religious activities to the human brain such as listening to Quran recitation. EEG signals from subject at rests, as well as in different cognitive states which are listening to Quran recitation and hard rock music have been captured from numerous subjects. The analysis results obtained from this project show that listening to Quran recitation can generate alpha wave and can help a person to feel more calm. This prove that by listening to Quran recitation, stress or pressure of a person can be reduced.