Why does a person understand a thing differently from another?
Why does it turn to something else after years?
Sometimes when I see things, it's not just they changed. It's the filter in my mind, the priority I set based on experience, the elements around it changed, or affected.
Talking about medium might be a start to pay attention to the relationship between details and entirety, subjectivity and objectivity.
What's the shape of glass you're bringing with you today?