Generally, other selves are mirrors are because they are you in a spiritual sense with a different "life story", except in this case the life story being the experiences from the beginning of the octave through the densities they've previously been a part of.
Specifically, in any given situation in real life, the other selves you come into contact with are mirrors because I find they often have catalytic characteristics or bring about catalytic situations that are relevant in a strong way to a distortion that you are attempting to learn/balance through. Basically, specifically speaking I've found other selves be like dreams - symbolic mirrors to your inner state, but they are symbolic and not always a direct message. Probably because of the veil and all.
You can see the specific mirror effect when you randomly attract people with a similar sort of situation or personality. I know it used to happen to me all the time when I was lacking in self-love, I'd attract people who also lack self-love, but of course it manifested it in many, many different ways. I judged myself harshly, appearance/body issues wise, and dove into a career to prove myself worthy. Some people I met felt necessary to prove themselves by attracting any and all social status and attention. Others felt it necessary to have many partners. Still others felt that all people around them were selfish because they projected their lack of self-love outward as extreme neediness. So the same inner lesson can manifest in completely different ways. Etc etc.
Specifically, in any given situation in real life, the other selves you come into contact with are mirrors because I find they often have catalytic characteristics or bring about catalytic situations that are relevant in a strong way to a distortion that you are attempting to learn/balance through. Basically, specifically speaking I've found other selves be like dreams - symbolic mirrors to your inner state, but they are symbolic and not always a direct message. Probably because of the veil and all.
You can see the specific mirror effect when you randomly attract people with a similar sort of situation or personality. I know it used to happen to me all the time when I was lacking in self-love, I'd attract people who also lack self-love, but of course it manifested it in many, many different ways. I judged myself harshly, appearance/body issues wise, and dove into a career to prove myself worthy. Some people I met felt necessary to prove themselves by attracting any and all social status and attention. Others felt it necessary to have many partners. Still others felt that all people around them were selfish because they projected their lack of self-love outward as extreme neediness. So the same inner lesson can manifest in completely different ways. Etc etc.