There is a window in our living room that is perpendicular to one in the bedroom. From there, you can look out of one room and into the other.
If the windows are open, you can hear what's going on in the other room.
And if there is a kitty in the window, you can have a conversation.
And if you are very lucky, she will be an adorable kitty that will coo with curiosity, mingled with concern. She'll be a little confused, and she'll paw at the screen. And then she will grow desperate.
And so finally, you'll rush to the bedroom to scoop her up into your arms and remind her that you aren't forever separated by some impenetrable screens. And you will laugh at just how silly she is.
Cats. Good for the soul.