Mircea Eliade wrote a book titled 'The Sacred And The Profane.' In this book you'll find some interesting ideas about how one person can identify an object as being sacred and another person can look upon the same object and see nothing more than what it is literally. He uses a rock as an example of this. One person could see a magical stone that was placed where it is by something divine (a hierophany), and another person will see the rock as a big hunk of sediment sitting inert.
I see my emotions, happy, sad and otherwise, when I look at an object I have knit. Yet, the person who gets that piece will likely never see those emotions. They are there, but only for me to see. I believe this is why it's difficult to be around someone when they receive something I have spent a long time working on.