I don't think you fully understand why consciousness is such a mystery to almost everyone in the scientific and philosophical community. The perceptions you describe do not exist in physical reality. They somehow emerge from the physical interactions of the brain, but the physical interactions are simply particles and electromagnetics. How can they create perception? There is a gap between the physical and what we perceive, and this ontological gap is referred to as the Hard Problem of Consciousness. In my opinion it should be called the Impossible problem
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For example the color red. Red doesn't exist in physical reality, it's simply a wavelength of light which is nothing more than energy. But it hits the cones in our eyes and then is processed in our brain and somehow the experience of red appears to us. The same thing with emotions which are particles interacting with each other.
If you believe matter can create these completely novel properties in our minds, then matter is not the only substrate in the universe. The mind is a separate property which has come about through matter ie property dualism.
Then there's also the concept of intentionality, which basically is the idea that we assign meaning to things. We understand. Computers don't understand, there's a thought experiment by John Searle called the Chinese room experiment which expands upon this.