Heb 13:20 Now may the God of peace who brought again from the dead our Lord Jesus, the great shepherd of the sheep, by the blood of the eternal covenant,
Heb 13:21 equip you with everything good that you may do his will, working in us that which is pleasing in his sight, through Jesus Christ, to whom be glory forever and ever. Amen.
"Working that which is pleasing in his sight". Now the Bible is not a book of specific do's and don'ts. For example, the bible does not say, do not smoke, do not go to dances, do not go to the theater, etc. etc. etc. So there's a lot of things that are not expressly forbidden.
However, God works through us to do those things that are pleasing in his sight. It is the joy of his children to please him in all we say or do.
Paul wrote, Rom 14:23 But whoever has doubts is condemned if he eats, because the eating is not from faith. For whatever does not proceed from faith is sin.
and 1Co 6:12 "All things are lawful for me," but not all things are helpful. "All things are lawful for me," but I will not be enslaved by anything.
In the beginning, we may feel like we have the faith to do anything we darn well please. As the Holy Spirit guides us over time and our conscience becomes tender, we become more sensitive to those things that displease him. Now is it wrong to dance to secular music? Well that is between you and God. And if you are too afraid or too ashamed to reveal it to him, then it probably is.