“I have given everything I see in this room [on this street, from this window, in this place] all the meaning that it has for me.”
Things you observe do not intrinsically carry the meaning that you have assigned to them.
Let’s take a door as an example. A door can play the role of a portal that you open to move from one space into another. But a door might just as well play the role of a barrier, depending on the circumstance. The door itself does not have the intrinsic value of portal or barrier. It is merely a flat rectangular form that fits in a casing.
What a door means to you depends on the role you have assigned to it. And that is fine; it is just helpful to know that that is so.