A part of all signs according to a tri-partitional definition, it corresponds to Saussure's "sound-image" (or "signified", thus Pierce's "representamen").
')"[1] Molino and Nattiez's diagram: An immanent description is an analysis of the neutral level.
In an applied semiology the neutral level of a sign is the "trace" left behind by a spiritual or ideal creation (i.e. art, masterpiece etc.
); or fruits of creative processes and multi-staged levels of realisations, including analysis of the qualities of the symbolic forms as a consequence of an arousement of the analyst's or artist's mindfullness as one of several factors for reaching an understandment of the neutral level of applied semiology depending on the frames of reference (i.e. corporeal/physical, emotional/distribution of resources - economy, intellectual/cerebral, artistic/spiritual."
"Neutral" comes from the English word[2] refers to a mutually understood non-dual background.