All religions are religious, by definition. Any time you experience a religion (or some aspect thereof) that is a religious experience.

Religious Experience - book - was created in 1985.

The Varieties of Religious Experience was created in 1902.

The Varieties of Religious Experience has 534 pages.

A religious experience is when someone who is not indoctrinated into a particular religion but participates in it for the first time and feels overwhelmed.

A religious experience is when someone experiences something that is unusual and is believed to be from God.