This is what probably is going to happen.

[NegaNova]

The usage of the word fear to me just seems to indicate the importance and urgency of Carla's condition to Don and Jim.

this amount of 6d entities contribute to the stability of the planet in regard to these energies.

And they do it how exactly?

I'm assuming if this were correct, the 6th density entity would simply only need to be, to exist, in order to bring that stability to the planet. Except that I wouldn't narrow this idea only to 6d, everyone is probably doing this all the time without realizing it.