Kalidasa in the beginning of Raghuvamasam
"Vaagarthaaviva samprukthou vaagartha prathipatthaye
jagathah pitarou vandey Parvati Parameshwarow"
Means word and it's meaning are inseparable as Parvati and Parameshwara in Ardhanareeswara.
But for a director it is a text and a physical text (written transcriptions of physical actions/gestures to construct the theme). So form and purpose of the text may change dynamically like normal human being and his imaginations.