The mom of the girl had never seen or heard spirits before. The girl herself had been speaking to spirits for awhile, probably since she was a very young child. It wasn’t till the spirits manifested to mom that mom realised that the spiritual realm is totally real. Demons are 100% real:
Ephesians 6:12 King James Version (KJV)
12 For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.
2 Corinthians 10:3-6 King James Version (KJV)
3 For though we walk in the flesh, we do not war after the flesh:
4 (For the weapons of our warfare are not carnal, but mighty through God to the pulling down of strong holds;)
5 Casting down imaginations, and every high thing that exalteth itself against the knowledge of God, and bringing into captivity every thought to the obedience of Christ;
6 And having in a readiness to revenge all disobedience, when your obedience is fulfilled.
Learn to use your authority in Jesus Christ. Cast out demons with these prayers: One prayer, how to overcome porn, how to overcome. The one prayer is for breaking all the curses and expelling any kind of spirits from you.