would you further explain the meaning of this: "the cat is both dead and alive". he used the word both instead of either-or. i look at it as a symbol but i am not certain if it has a deeper message. thank you.

Yes I can, it’s a reference to Schrödinger’s cat which is

thought experiment, sometimes described as a paradox, devised by Austrian physicist Erwin Schrödinger in 1935. It illustrates what he saw as the problem of the Copenhagen interpretation of quantum mechanics applied to everyday objects, resulting in a contradiction with common sense. The scenario presents a cat that might be alive or dead, depending on an earlierrandom event. Although the original “experiment” was imaginary, similar principles have been researched and used in practical applications. The thought experiment is also often featured in theoretical discussions of the interpretation of quantum mechanics.”

Basically it has something complex having to do with math and science in which the outcome is the cat is both dead and alive at the same time. Read the wiki article I linked it explains it better. I’m assuming he is just using it to convey a paradox.