Art is a product of human activity, made with the intention of stimulating the human senses as well as the human mind and/or spirit; thus art is an action, an object, or a collection of actions and objects created with the intention of transmitting emotions and/or ideas. Beyond this description, there is no general agreed-upon definition of art, since defining the boundaries of "art" is subjective, but the impetus for art is often called human creativity.
An artwork is normally assessed in quality by the amount of stimulation it brings about. The impact it has on people, the number of people that can relate to it, the degree of their appreciation, and the effect or influence it has or has had in the past, all accumulate to the "degree of art." Most artworks that are widely considered to be "masterpieces" possess these attributes.
This is expressed beautifully through glass. Both the glass and the gaffer have their own ideas and energy. And somewhere they come together to form this magnificent piece of art. Each piece is unique. No pieces will ever be the same. Alike, but never the same. Which is why I have chosen this medium to express myself through.