Any Christian beliefs / sources in support of Indigenous rituals?

Hi, I’m a (m17) raised-Christian, religiously confused Canadian Indigenous youth. My mother is a pretty far right christian who fully believes that ancient indigenous ceremonies such as the Sweatlodge or Smudge Ceremonies are incredibly sinful and go against God’s word. As these are ancient, sacred ceremonies, older than the time when Christianity came over with the colonizers, I’m wondering how this is fair to the Indigenous peoples. I wish to continue with my ancestral beliefs, but I’m wondering if this is sinful and should not be done in God’s eye.