What does it mean to magnify or glorify the Lord? 'Magnify' can mean to make something look bigger than it is, but this is not possible to do with God.  Certainly God can't obtain more glory than the infinite worth he had from all eternity. So if we can't make God seem bigger or more glorious than he already is, what does it mean for God to be magnified or glorified?

Note: I am not asking 'what' magnifies or glorifies the Lord, but what does it mean in our understanding of God that he is 'magnified'?
I'd give the same answer I gave on this similar (but not quite duplucate) question.

Clearly, those phrases can't mean that we have the ability to alter God in any way.  I don't think that the definition of "magnify God" in these phrases means to actually make God "bigger" or "greater". I understand them to mean "Make God more prominent in my life, our culture, etc."

Magnification doesn't make objects bigger, it alters our perception of an object, making it appear bigger to us.

Similarly, magnifying God doesn't make Him bigger, it means He becomes more prominent to us.

The phrase "God, I magnify you" simply means "I am making you greater (more important) in my life, and putting you first, because you are my focus and priority."