@Chance , I have a bit different definition for what you are asking.
The energy a person gives off through their emotions and thoughts changes the energy around them and some people can sense that change. It is nothing I fear, but, the super negative charged energy from a hate filled person is not beneficial to others energy fields around them.
And vice versa. Happiness and love gives a charge to the air that is good for others. (There is science on this.)
I don't touch much on any particular religion, but, rather tend to encompass all of them. Each has something to teach when it comes to the spiritual. Everything is energy in various frequencies. And I do believe in spirit walk-ins.
This isn't the forum for deep discussion on these subjects
so I will just say I have a lot of experience in metaphysics and fear of negative entities is the weak spot.
Be not afraid is the best protection.
This subject has been brought up before and usually shot down due to lack of concrete scientific proof.
If you would like to PM me on specific questions, I would be glad to answer as scientifically as possible. It is one of my interests and have a degree in it. Metaphysical sciences and spirituality.
Not one specific religion. I embrace them all.
IMO they all have roots in the Universal ALL .
Everyone has a right to their beliefs and to grow and learn with it.