In my opinion the phrase true-religion, is an oxymoron; and can be an especially painful one because it boldly promises what it can not deliver and generally gives little if any meaningful guidance. The best lesson religion has to offer, is that it is empty of true significance.
The living Truth we seek is boundless and vast, nakedly raw, real and actual, immediate and vibrant as Life itself. Religion, on the other hand, is nothing more than dogmatic beliefs, metalized words and thoughts, ideas and concepts, cadavorous interpretations and facsimiles. In a sense, Truth = reality and life. Religion = death; foolishly offering you it's own antithesis. Which it can never deliver. Religion is the ultimate deceiver.
Religion exists solely in the limited and cramped domain of the mind. Truth, what the word G-O-D feebly points to, is boundless and what the tiny mind exists within, what all existence exists within.
This is why the wise have recommended -- when in search of truth -- that there be stillness of the mind. The mind does not and can not know truth. Nothing the mind can offer is IT. There is no true-belief, no true-religion.
Truth is lived, it is what you really are -- just beneath all that is believed and thought to be.
j