The religion of Colossae at the time was the Hellenistic worship of Zeus, Aphrodite, etc. However, the Colossians were also into astrology and maintained an openness to non-pagan religions, including Judaism. Paul had learned that this mentality had infiltrated the young Christian church there and charges them:
So, as you received Christ Jesus the Lord, walk in him, rooted in him and built upon him and established in the faith as you were taught, abounding in thanksgiving. See to it that no one captivate you with an empty, seductive philosophy according to human tradition, according to the elemental powers of the world and not according to Christ (Col. 2: 6-8).
Let no one, then, pass judgment on you in matters of food and drink or with regard to a festival or new moon or sabbath (vs. 16).
If you died with Christ to the elemental powers of the world, why do you submit to regulations as if you were still living in the world? “Do not handle! Do not taste! Do not touch!” These are all things destined to perish with use; they accord with human precepts and teachings (vs. 20-22).