Short idea (75): In the following I use a flute as an example, but I could have used any thing: It is difficult to stay clear about the difference between the sound of a flute (gotten from hearing), the sight of a flute (gotten from vision), the feel of a flute (gotten from touch), the memory of the sound or sight of a flute, the image or sound of a flute in ones imagination, the idea or concept of a flute (from thinking), the desire to own a flute or see a flute or hear a flute, and a flute.