I think the more obvious interpretation of klear is that it fits in with Miles' character trait of gas lighting his guests. They see something with their own eyes and he tells them it didn't happen that way, causing them to question their own sanity and powers of reasoning, so he is gaslighting them. Similarly, he has a literal gas (hydrogen) lighting / powering his home. On the second rewatch, Rian is telling the audience what he is doing to them the moment they learn about the power source.
antipode83 t1_j2dm0pw wrote
Reply to Glass onion, more on why Klear works so well with the story by ihavetwelvesads
I think the more obvious interpretation of klear is that it fits in with Miles' character trait of gas lighting his guests. They see something with their own eyes and he tells them it didn't happen that way, causing them to question their own sanity and powers of reasoning, so he is gaslighting them. Similarly, he has a literal gas (hydrogen) lighting / powering his home. On the second rewatch, Rian is telling the audience what he is doing to them the moment they learn about the power source.