Manifestation of demonic possession causing the possessed person to speak in a strange tongue or gibberish

The people featuring in this video are seekers of God doing moderate to intense spiritual practice as per the five basic principles of spiritual practice.
They are possessed by ghosts.
They have been treated by spiritual healing remedies. This spiritual healing has forced the ghosts in them to surface and manifest.
The strange sounds they are making are gibberish.
The reason ghosts speak gibberish when manifest is generally due to one or more of the following reasons:
- Calling for help from superior ghosts to fight the positivity generated through spiritual healing
- Gaining black energy through incantation
- Throwing black energy on the people around directly or indirectly
In all cases the strange speech stopped after spiritual healing.