Reincarnation must be understood if human conditions are not to remain incomprehensible. By recognising the transitional process of reincarnation which occurs throughout the universe the individual realises how and why they exist as they do.
Each human life-cycle covers an average period of 144 years, during which time various changes can and do occur, depending on which the starting potential of the next earthly cycle begins. In theory, living a perfected life the human being would not physically transition before this time. In practice, each person self-destructs and has occasion to dwell on a non-physical plane of existence before being returned to earthly life once more, thereby creating further possibilities for attaining perfection according to universal law.
Which is precisely where karma comes into play.
There is no ‘good’ and ‘evil’. There are kind acts and there are harmful acts. The former benefit at least one other person while the latter harms at least one other person, either by omission or intent. Then there are multiples thereof. This is not difficult to understand or put into practice, since common sense examples abound from personal to national and international acts.
Karma is predicated on these principles. There is no universal revenge involved, only a desire for harmony based on a cause and effect scenario which continues until the perpetrator of acts carried out knowingly or otherwise accepts there are certain outcomes which follow.
Of course, a knowledge of what comprises the universe enables the individual participant to make informed choices.
For a start, the universe is created by a force called Love, which emerges from Eternity and sub-divides into positive and negative elements which then manifest and are maintained on various levels of existence until destruction occurs. Or perfection ensues and a fully developed harmonious entity reunites in Eternity. With regard to the human soul, this outcome is experienced on earth as Peace Profound, and is the ultimate state sought by the knowing mystic. No other state or method is comparable. And when this condition is attained there is no further need for another earthly reincarnation to occur.