T(h) 12 I 2 o 4 E 20 N 14 L 1 P(t) 12 I 51 n(S) 5**
r 85 E 20 s 91
6 L 3 P 7 r
y 1(5) d 81
19 O 9 i 19
91(4) C 5 o 14 C 7 T 9 N 2(0) O 51 s 85 i 3 y**
z 81 d 4 n 6 z

"untwine" and "entangled" bring to mind the image of multiple interwoven threads.

Letter groups and number groups alternate within each "word".  There appear to be seven words in the sentence.  There appear to be 2^6 letters in the sentence.

In letter groups containing parentheses, one letter is capitalized, the other is not.  What this means, and why they even exist elude me.

Numbers in the range 65-90 remind me of the ASCII code.

There are 3 Letter(letter) groups and 3 number(number) groups.  There are 2x7 lone Capitalized letters and 2x7 lower case letters. There is one number** group and one letter** group.  There are 3x7 numbers less than 26 and 1x7 numbers greater than 26.  The number seven seems to be important, perhaps related to the seven "words"?