In addition one may wonder if it God's choice to allow evil to continue existing. The answer is no. According to Spinoza everything which exists derives from the very existence of the absolute substance, God, independently from his will. This puts an equality sign between God and nature. The implications deriving from this statement are that a profound logic and necessity of the universe contributes to the conception and therefore, the existence through itself of God. God is not only a manifestation of itself, but a manifestation of the universe nature manifesting itself into and through the form of nature. According to the Christian tradition, the world is born out of an act of free will of God, according to Spinoza, the birth of the world is a necessary...

The question referring to whether or not God thought about the conception of the world when he considered his own conception is a false problem.
One last question which comes into mind is the one of freedom. Spinoza states that everything that is, is in a certain manner because it could not have been otherwise. This implies that there are universal laws which derive directly and necessarily from God's nature. On the other hand, the individuals should be considered as having the power to become modifications of the supreme substances attributes. In this manner, the existing reality should be determined by both the universal laws and the actions of the individuals, just like in a game of domino.