The personality is a predetermined filter decided by the data gathered in past lives to maximize evolution for the new incarnation. Depending on the evolutionary level of the inhabiting spirit-form, and the over-all state of the planetary consciousness block, for better or worse, its expressions, likes, and dislikes have been preconfigured.
In relation to other human beings/spirits, this means the personality is a source of nourishment for them that naturally arises through the living. However, this nourishment should be offered freely and neutrally to interested parties, and not imposed. Because just as the Creation gives its neutral tools in the material world for spirit-forms to develop, thereby aiding the Creation itself in development, then it should make sense to the human to follow by example and offer their tools in the same way, without seeking to be liked or loved for their expressions in an overly dependent, degenerated way.
Basically, through living and self-discovery, every human emits their own respective frequency that naturally attracts other spirit-forms around them in need of that particular energy to further evolve. The problem arises when humans of these certain frequencies try to further evolve humans who aren't compatible to that particular energy yet and end up trying to mesh wavelengths that shouldn't necessarily be meshed, either do to unknowledge, or damage in the psyche. That is why one human being cannot truly change another's mind, and why it is pointless to even try if the receiver shows no inkling or interest in the offered wisdom. Because it is inevitable that human being resisting the change will get there by themselves, even if it takes several lifetimes.
It is much more productive to seek out like-minded and more advanced individuals, and for a human to concern themselves mostly with their own evolution instead of waving giant banners everywhere they go, which in most but not all cases can be attributed to egoism. While it can attract genuine interested parties, likely this not necessary to go to such lengths because it will happen naturally in the life. Even if those human beings resist, there is no escaping the pre-programmed striving. In this sense, it is better to ride and respect the wave then try to paddle against it. Having said that, it must also be known there will be those humans who do struggle against the wave, and if what has been said previously is understood, then it is clear this is also a part of the self-discovery, and in turn, more offered nourishment. Spotting the cause and effect in every situation, even if it is what not to do.
It is also the case the personality one is incarnated with will not be the one they die with, because the word “personality" attempts to wrap a complex system of ever- transforming energy into a neat bundle, and this is not how it works. Down to the smallest calculation of time, every moment and every thought is being recorded by the material and spiritual consciousness. Compared to a simple addition or subtraction problem, a recalculating of the human being is constantly taking place, so by living the life, even if it is only sitting in a sterile room merely breathing, the human is evolving. Due to this, certain traits and mannerisms used to identify personality types are changing as well, meaning it is unwise to hold onto preconceived notions regarding anything other than the laws and recommendations of Creation, which are the only things that are timeless and eternal.