Even though we don't know how life originated, there's nothing fundamentally mysterious about it. With consciousness, on the other hand, we don't even know what a scientific solution would look like, with many saying consciousness is impossible to fully explain scientifically.

A rock can be explained scientifically because there's nothing it's like to be a rock, so once you've described what a rock looks like physically, chemically, etc., you're done. But if you try to explain everything about a bat, you'll never explain scientifically what it's like being a bat, so that part of it, the subjective consciousness, will always remain inaccessible to science. Or so some say.