What is the reason for the perception our colleague [name withheld] has that she is being constantly attacked, seeing an endless onslaught of spirits and ETs needing removal and that her safety and functioning changes from moment to moment requiring frequent repeated self-clearings to change her polarity? What can we do to help?

This is a perfect illustration of the pitfall in using a vague readout such as polarity, and assigning it to something of concern, namely, in this case, her safety and freedom from interference by outside agents. She has deep inner fears and what has happened is to connect the polarity readout to the state of quiescence in the deep subconscious, and as a result, the subconscious is showing her that it is unhappy, again, and again, and again, and again, and again. And so, until the deep subconscious is satisfied as to its safety, she will be told over, and over, and over, that she is in danger and under attack, but this is not truly so. It is the inner perception, and she is allowing it to have the means of expression and taking that to heart. And it is not that it is wrong, it is a misunderstanding of what is being represented by the readout. So the answer here is to do more inner healing and to focus on the desires wanted and to allow the normal separation of things, so that only in dire circumstances will there be perceptible discord. You have the means to help her by doing subconscious channeling and this will be the answer for her.