Anonymous asked: Does that mean body modification is a sin? I got my tongue pierced and some people told me to get down on my knees and beg God's forgiveness for rebelling against Him. And they were Pentecostal, not Catholic.

Most body modification isn’t wrong. A piercing is hardly “physical harm”, and when done properly and professionally, there is little risk involved. Things like scarification, however, where there is a lot of risk of infection and bodily harm may be sinful, however, because they don’t treat the body with respect. 

Be blessed.