Everyone is religious. Christians are religious. Hindus are religious. Muslims are religious. And believe it or not, atheists are also religious, as are secular humanists and others. Everyone has a set of beliefs and values that they live their life by. If a person does not believe in and worship the one true God, then they will find another god.
Often that god is self – or some cause that people devote their lives to, or some belief that they commit themselves to. They will give themselves over to some ultimate explanation of life, some moral cause, or some purpose greater than themselves.
Such belief systems, philosophies, or worldviews serve “to interpret the universe for them, to guide their moral decisions, to give meaning and purpose to life, and all the other functions normally associated with religion” as Nancy Pearcey puts it. Thus there is such a thing as secular religions.
In the West today we find countless people who have rejected Christianity but have not stopped being religious. They have simply substituted other gods for the God of the Bible. They still want their life to have meaning and purpose. They still have a sense of making atonement of some kind for their various failings and shortcomings. They still have guilt feelings that they seek to deal with.
Thus they will often find substitute religious causes to join. These groups have secular versions of biblical themes such as some sort of beginning, a fall, sin, redemption, and eschatology. These counterfeit religions give these folks a sense of meaning and fulfillment. That is because they are in fact made in the image of God, and if it is not the true God that they worship and follow, then they will make up their own.
One of the big god-substitutes of today is the green religion. Many people who have rejected more traditional religion have embraced environmentalism as their big picture belief system. It gives them a sense of belonging and purpose, and it assuages their guilt.
— Bill Muehlenberg, Culture Watch, Green Religion, August 21, 2019