 The initial reference-fixing is done “at the time of [establishing] the linguistic convention”  (saṃketakāle)[44]  by dubbing a sample case with the words, “This is blue”. This dubbing is a purely causal event not dependent on any descriptive content. It is an arbitrary choice, or speech-intention (vivakṣā), of the dubber to designate a blue sample with the term “blue” rather than  another.[45]  Other things will then also be grouped together under “blue” by the combination of perception and judgment described above. This initial reference-fixing is then preserved in a commonly respected convention that transmits the original intention and dubbing from speaker to  speaker.[46]  Subsequently “at the time of using [language] conventions” (vyavahārakāle) other speakers will rely on their previous habits, or “imprints” (vāsanā), and the earlier reference-fixing that is now a well-established convention in the community. Although speakers could in principle use the word “blue” to refer to, say, the colour of chocolate, practical considerations generally mean that they won’t: if someone wishes to tap into the causal chain transmitted from the initial dubbing, she will use “blue” for blue things exclusively.