Both the Intro and the Coda are built on two lines where one is expanding and one diminishing. This is loosely following a Carnatic rhythmic structure called a Korvai.
Line I has “statements” and the space between them are called “gaps”.
The statements are diminishing ( 4-3-2) and the gaps are expanding (9-10-11)
Line II is filling in the gaps (from Line I) with expanding lines.
S = Statement (line I) g = gap (line II)
S. g. S. g. S. g
4 – 9 – 3 – 10 – 2 – 11 – Diminishing pattern