Some Beings stuck to you can be almost as able as yourself and may even run or control some of your Mind. These are also called Joiners. You are better without them. An Entity can be a Being or a part of a Being, the energies or attention units or whatever it may be. Any way it responds to being handled as a Being, as at least there is a line to the actual Being.
Distance is basically a Consideration.
The way to handle an Entity or a cluster of Entities is to focus your attention narrowly on one pressure area, often about 1 millimeter in diameter. This can break up the cluster of Entities into individual Beings as they get aware of their situation. The Beings may then expand their space. It is possible to feel them. Some are bigger, for example 5 to 30 cm in diameter.