Jean-Paul Sartre, a French philosopher, argues in his book that there is a certain relationship between being in itself, matters and being for itself, beings humans with consciousness Being and Nothingness. According to Sartre, Nothingness is a transcendent being, which means a lack, caused by asking questions. First of all, to understand what nothingness is, it is important to know the difference between Sartre's idea of ​​being-in-itself and being-for-itself, because For-itself contains consciousness, which is the element vital to explain nothingness. Sartre defines matter such as trees, fruits or coins as being-itself, which has no cause and stands alone. As the term “being-itself” indicates, it rather means autonomous being than causelessness. On the other hand, Sartre defines being for itself as something endowed with consciousness, that is, the human race. Furthermore, Consciousness includes fears, hopes, wishes, desires, emotions and memories. “a man is nothing more than a series of undertakings… he is the sum, the organisation, the set of relations [or involvements] which make up those undertakings” (P258, Existentialism). As Sartre states, being for itself, contrary to being in itself, depends on something else. In other words, consciousness depends on matter and there is no consciousness without matter. Second, a way to connect consciousness to the world, which means relating being-for-itself to being-in-itself, is achieved through questions, which require three sorts of not being described as nothingness. For example, there is a computer and it does not start. At that moment, the owner of the computer and his colleagues say, “What's wrong with this computer?” And then there are three possible answers for...... middle of the paper......could do the opposite. They may find that some facts about themselves, such as what they did in the past, are unpleasant and unpleasant because they feel more comfortable facing the horrors of freedom than facing this horrible fact about themselves in the past. In this case, they try to deny their facticity and emphasize their transcendence. For example, criminals say “yes, I did it a long time ago, but now I'm beyond it” and Sartre defines this phenomenon as bad faith. In conclusion, nothingness refers to gaining security through social rules and self-realization, as the waiter tries to be a god waiter. At the same time, although man unconsciously considers himself to be matter, to be in itself, he consciously wants to define himself as being for himself. Therefore, transcendence and facticity are what Sartre means by nothing.