An individual’s definition of a Supreme Being, varies with the individual. In order to petition (apply for) Masonic membership, a man must profess faith in a Supreme Being. How he defines this, is a matter for the individual conscience. Masonry accepts into membership, men of many different and varying religious beliefs and experiences. The individual religious practices and beliefs of each individual Mason, are a matter of extreme privacy, and are of no concern to Masonry. Only an avowed atheist cannot be made a Mason.
When in lodge, you may be sitting next to a Roman Catholic, two chairs down the man may be a Protestant. The man behind you might be a Mormon. I once assisted a Muslim in the masonic ceremony, to be made a mason. I held his hands on the Holy Qu’Ran, and he was thence made a Mason. I consider this to be one of the high points of my entire Masonic career. I now live in Iraq, and on our altar, in the center of our lodge, the Holy Bible and the Holy Qu’Ran both rest side by side. Masonry does not teach that all religions are equal. Masonry teaches that all MEN are created equal.
If you wish to participate in an organization, where freedom of conscience is paramount, and each individual is encouraged to seek out and enhance his religious experience, then Masonry might be right for you. I encourage you to continue your research. Masonry is a not a secret organization, and always invites serious inquiries.