Existentialism is a philosophical theory characterized by a search for the meaning of existence/being. The norm of authenticity (Crowell, 2010) is the governing norm in this search. The considered aspects of existence are several: the problematic character of the human situation, the phenomena of this situation, the intersubjectivity that is inherent in existence, the general meaning of Being, and the therapeutic value of existential analysis (Abbagnano, 2014).
The role of Malebranche in understanding Berkeley. Malebranche, a follower of Descartes, very influential in France, is important in understanding Berkeley. Malebranche understands ‘what is it for one thing to cause another’ in terms of necessity; it must be, when A happens, B necessary follows. Why is this? Because the only real cause in universe is God, and God sustains the world by recreating it every instant (see Malebranche 1688, 1.10; 2.4; 3.5; 3.16).