So what are the entity energies?
To me, it includes from disembodied spirits to a residue of someone's strong emotional energy.
It could be called energetic "attachments".
Say, you really really really love someone (or hate someone, it's the same when it's very strong), that feeling can become entity too.
And for disembodied spirits or something that have never had human bodies, those are all around us anyway.
And some of us (myself included) are easier than others to pick up those energies.
Even if you are one of those who could easily pick up those energies, you do not need or worry about having an elaborate release ritual!
Because, basically, when you are attached to those entity energies, it simply means that your vibration was low. Hence you've resonated with those energies that are basically low in their frequencies.
So, if you change your vibration, you will be dissociated with.
But it's much easier if you work energetically, that's all :)
In my sessions, when that comes up, I simply treat it by raising your vibration. And I can also tell you few things about how to keep yourself in that place.
Remember, everything is energy.