In this paper, I posit that our minds inevitably internalize the external in the process of metaphysical enquiry because they naturally rely on abstraction, categorization, simplification and association. I first focus on the idea of substratum by claiming that it cannot exist independently of our minds. Second, I opine that both primary and secondary qualities are significantly dependent on our minds. Last but not least, I extend the shadow of relativity over the notion of motion. Finally, I postulate that even though there is certain external reality upon which our enquiry can converge, the external world is neither perfectly nor particularly closely knowable.

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