Nihilism is known to be the rejection of anything that is moral and religious. Those who consider themselves to be nihilists feel that life has no meaning. They do not understand the need to make use of their emotions. Existential nihilism is also the belief of some people that all of the human beings that are in this world will not have anything good to contribute to the world.
They believe that human beings are not capable of doing anything that might change the world. This belief can be hard because this means letting go of all the meaningful aspects of life to the point that they also abhor the mere existence of people.