"Self-made religion"

Colossians 2:20-23, 3:1-4. NASB 95
20 If you have died with Christ to the elementary principles of the world, why, as if you were living in the world, do you submit yourself to decrees, such as,
21 “Do not handle, do not taste, do not touch!”
22 (which all refer to things destined to perish with use)—in accordance with the commandments and teachings of men?
23 These are matters which have, to be sure, the appearance of wisdom in self-made religion and self-abasement and severe treatment of the body, but are of no value against fleshly indulgence.
1 Therefore if you have been raised up with Christ, keep seeking the things above, where Christ is, seated at the right hand of God.
2 Set your mind on the things above, not on the things that are on earth.
3 For you have died and your life is hidden with Christ in God.
4 When Christ, who is our life, is revealed, then you also will be revealed with Him in glory.

Colossians 2:20-23 refers to “self-made religion" (Wuest translation: “self-made, self-imposed worship”). As a result of the fall, we want to make our own religion. It looks good; it has an appearance of wisdom, but it is useless. The mind set in 2:20-23 is the mind set on the things of this earth (3:2).

What then is “true religion” (other than James 1:27)?

I suggest I can find some of it in Colossians 3:1-4: “keep seeking the things above, where Christ is.”

This is where my mind and my heart needs to be, laying up treasures in heaven. Or, as we would say it today, "putting my stock" in heaven.