A tunnel is a lengthwise passageway, this much we can say for sure. It connects two points, whatever they may be, and becomes a transition between them. In this work, there is a tunnel. It exists between two points.
A thought is a lengthwise passageway, this much we can say for sure. It connects two points, whatever they may be, and becomes a transition between them. In this work, some thoughts may exist. They are the transition and neither the beginning nor the end. While watching the work, one may even have some thoughts of their own. This is a thought, and this thought informs the work (From the introduction to Stephen Heath's English translation of Roland Barthes's 'Image, Music, Text', 1977):
Signifiance has sometimes been translated as 'significance', but this, with its assent to the stressed position of the sign, is exactly what it is not... Signifiance is a process in the course of which the "subject" of the text... struggles with meaning and is deconstructed ("lost"); signifiance - and this is what immediately distinguishes it from signification is thus precisely a work: not the work by which the (intact and exterior) subject might try to master the language... but that radical work (leaving nothing intact) through which the subject explores - entering, not observing - how the language works and undoes him or her. Signifiance is "the un-end of possible operations in a given field of a language". Contrary to signification, signifiance cannot be reduced...to communication, representation, expression: it places the subject (of writer, reader) in the text not as a projection... but as a "loss", a "disappearance".