Difference between theist and atheist

People have difference of opinion about presence of God. We as human being always consider everything in physical form. But some natural materials are created in such a way that we cannot see like heat ,humidity, air. These natural things exist but not in physical form. We cannot control or keep such matters in our custody. The existence of god is same as we cannot see air but can feel every time. by chanting of mantras we feel the presence of God around us and gets encouragement for doing wish fulfilled. Hey you bring faith in God increases our power and stamina to do anything because every thinking of our mind will give us the right path of life. We must always thankful to God for what  god has given us. Buying thanking God for his Mercy over us and are free from worries and hurries of life. Religion has come into existence due to some faith of a person in Supernatural powers like on the sun, the moon ,the universe, the stars. I have some opinion of different people about existence or presence of God. Undoubtedly there is existence of god even the person does believe in his presence or existence or not.