I think you should ignore it completely!
Somewhere I read that when somebody start meditating he/she gonna “shine” in the astral plane , and maybe a negative entity notice you and start to attach to your aura . Ignore those taughts !I know it’s hard because I have similar experiences, in my case there were only sounds in my head which strat to say blasphemous things against Father Satan . It was really scary because it was my voice !
When I started to speak to Father in my mind , this voice disappeared.
I think you should tell this to him !
Believe me , he is always listen and always lead you to the solution of your problems !
You should clean your aura and chakras.
For me the RAUM mantra was very good. To make it more effective, vibrate under the sun and imagine yourself in a bright withe/gold aura .
Oh and one more thing , if this “ ball entity “ pretends to be your guardian,
It’s gonna get a big punishment!