There is a significant debate going on long time about the existence of a theory of consciousness in Spinoza’s philosophical system of thought. This article, on the one hand, offers a different reading to alleviate the current debate, and on the other hand, it aims to bring together and analyze the main theses of this debate. In this matter, it is argued that a theory of consciousness can be deduced in Spinoza’s system of thought, and despite all its parallelism, the (...) possibility of conceptual thinking the “mind” independently from the “body” even if not in reality, is examined. In this context, first, the doctrine of “ideas of ideas” is put forward as the metaphysical basis of consciousness. Then, the “degrees of consciousness”, which are formed according to the mind’s ability to reach more “ideas” about the parts that make up the complex structure of the body, and to extract the “ideas of ideas” from these “ideas”, are determined as the epistemological aspect of consciousness. Depending on the degrees of ideas of the body’s affections by the mind and the kinds of knowledge, it is determined how the human mind reaches the consciousness of “self”, “God” and “other things”. The conclusion in the study is that in Spinoza, consciousness is built on “knowledge”; while “ideas” represents knowledge, the “ideas of ideas” represents consciousness. Thus, the unclear boundaries of the distinction between “conscious minds” and “un- conscious minds” and “conscious ideas” and “un-conscious ideas” in the human mind, which are at the center of almost all discussions, are tried to be clarified. In this sense, Spinoza’s theory of consciousness in its most general scope is based on the theory of mind and the theory of knowledge, which is a result of first. In Spinoza’s theory of mind, especially when it comes to the human mind, every change that occurs in the body, corresponds to an idea (parallelism) or is represented as an idea. The ideas that occur in the human mind are just representations of the affections of the body, that is, of the changes that occur in the body according to the effects it receives and influences as a result of the relations established by the body. While the human mind perceives some of these ideas in a “confused”, “fragmentary” or “inadequate” way, it grasps some of them “clearly” or “adequately”. Spinoza puts forward his theories of mind and knowledge on this basis. However, the human mind is not settled with only the ideas of the body’s affection that occur in it, but also constitute secondary ideas about these ideas, regardless of whether they are adequate or inadequate. These secondary ideas express awareness of primary ideas, whether they are adequate or inadequate. In the article, this constitution and awareness, that is, the “ideas of the ideas”, is tried to be revealed in detail as the basic ground or main line of the Spinozist theory of consciousness. Other results or outcomes of the theory of consciousness require first to understand this basic ground. Accordingly, the human body is a very complex structure that has the most parts or components in Nature compared to the others. The human mind, on the other hand, has the capability to reach ideas about each element and its change of the complex structure of the body. However, the content of these ideas is formed according to the degree to which the human mind recognizes its own body. The degree to which the human mind knows its own body also determines the degree of its consciousness. Spinoza states that non-human beings also have a certain “degree of animation”, and while stating that what he says is valid for other beings as well as human beings, he also tries to justify that the human body is superior to other bodies and the human mind to other minds. Spinoza sees the superiority of one body over the other as the ability of one to perform more actions on one’s own, compared to the other. The more parts a body has or the more different kinds of objects it contains, the more it is available to perform actions and influences or receives effects. Because when a body encounters or interacts with other bodies, each of its parts can be affected by this encounter or relationship. Therefore, the more complex the body has, the more ideas the mind can have. This is the reason why the mind of a person is superior to other minds because of whose body is superior to other bodies. Depending on the human mind’s ability to know its own body, there are “unconscious ideas” and “conscious ideas” between the two minds when compared to and between ideas in the same mind, as well as a difference degree in consciousness from a lower level to a higher level. This degree of difference is discussed in the article as the epistemological result or outcome of consciousness. The “self-consciousness” of human, which comes to the fore as a result of considering the metaphysical basis of consciousness and its epistemological result together, constitutes the last subject of the article. Keywords: Philosophy, Spinoza, Mind, Consciousness, Ideas of Ideas, Self- Consciousness, Panpsychism. (shrink)