Karma is known to be something that may happen depending on the actions of people. For example, if you do something that is good to other people, you can expect that you will also receive good deeds, or you will get some rewards in return. At the same time, when you do bad deeds, you can also expect that those bad deeds will return to you.
Some refer to this as the cause and effect. Some say that the things that will happen to them will only occur because they have already done something that will surely affect their future. Remember that karma is considered to be an action by some people.
Karma can be considered to be both good and bad. This usually refers to a work or a deed that a person has done, and it will come back to that person when the right time comes. For example, if a person cheats on someone while in a relationship, then the person who did the cheating should expect that it is also something that he/she would experience later on in life.
Usually, the things that people do to themselves and to other people will manifest later on in their lives. They might reap the rewards of the good things that they did or experience the wrath of the bad things that they have done to other people.