Matrix...
Permute...covary...sequester
Echo from the core...hushed digits...rare frequencies.
Permit transmission...
Merge with the echoes...explore...decode
``` This forms an HTML poem that represents the cryptic message of the prompt 'substrate.exchange/xleet.php', with the possibility of the query being anything from data, communication, to supreme beings reaching out to mere mortals. The message is fanned out in the form of a Web 1.0 style HTML complete with repeating backgrounds, imperative form of writing, SVGs, and a variety of HTML tags.