“Whatever you have done will come back to you, everything that happens to you is just retribution,” so says the Sutra on the Law of Karma and https://www.julianalucky.com/story. Whatever we have done, this information is stored in the causal body. Because the soul undergoes many rebirths, karma has a complex structure and includes four kinds:

Sanchita karma is that karma which has already accumulated but has not yet manifested itself in the form of any events. Therefore, one should not worry too much about unpleasant events: positive karma may manifest at any moment and put an end to suffering. Also one should not rely on the fact that one’s life is successful, because the prosperous vector may change.
Prarabdha karma is manifested karma, the fruits of which are reflected in the form of the physical body (strong or laden with illnesses), birth conditions, and some already established events. By observing the manifestation of prarabdha-karma, one can be convinced of the existence of cause and effect.
Kriyamana karma is a type of karma that we create at the moment and the fruits of which will sprout in the future. We control kriyamana karma by directing our actions in a constructive direction.
Agami karma is created by thoughts and intentions that remain in the causal body and reincarnate in future lives. The workings of agami-karma are well explained by the saying “What you think about, that’s what you become.
When a person has a connection with the causal body, the storehouse of karmic information, he/she can understand the reason for these or those events in his/her life. If one can’t change the consequences of sanchita and prarabdha karma, then it’s possible to influence kriyaman and agami-karma. So by working with the causal body, we shape the future.