If you want to dig deep, that's a textbook example of qualia: https://en.wikipedia.org/wiki/Qualia https://en.wikipedia.org/wiki/Qualia and https://en.wikipedia

If you want to dig deep, that's a textbook example of qualia: https://en.wikipedia.org/wiki/Qualia https://en.wikipedia.org/wiki/Qualia and https://en.wikipedia.org/wiki/Knowledge_argument https://en.wikipedia.org/wiki/Knowledge_argument (Though I can't quite agree with Jackson that qualia refutes physicalism.)