He explains that even these emotions and our reactions should not be confused with free will because they occur through our innate striving to "preserve" our self, or, our natural pursuit to seek pleasure while avoiding pain, which Spinoza refers to as our conatus. Our actions then are caused by external forces that are beyond our control. The idea that we can influence the world through our actions is completely false.
Spinoza would have us believe things could not have been produced by God/nature in any other way than the way we see it. This is because, although God is not constrained by laws of nature, he must follow these laws as they unfold. To change them would mean imperfection to Spinoza and he feels that this idea is absurd (Spinoza, 1992; 44). God therefore is a necessity of his own nature and even he does not have free-will. Spinoza says that in order for god to be truly free, he would have to have a stock of unrealizable realities that he could use to change the reality we see everyday however he does not because it simply is not necessary. Whereas Descartes"" god creates out of want and choice, Spinoza's idea of god acts purely out of necessity. What we can take from this is that God is indeed the creator of the world we (humans) see, but he cannot change this reality or its form to an alternate reality because it simply is not necessary for him to do so. Spinoza says that "there is nothing in nature that is incomplete" thus there is nothing that needs to be changed. Therefore if God is said to act out of necessity rather than merely wanting to change, he has already perfected (according to Spinoza) a world and would not have to change anything because he has left nothing out (Spinoza, 1992; 77) .
On the subject of human action and passions, Spinoza believes that there is a sort of "limited control" in that we have the ability to increase or decrease our power of acting with regards to certain things.