patterns begin to reveal themselves

#!/usr/bin/perl

use strict;

my $pi_node = <<cQoUmOpTlAeTtIiOoNn;  $pi_node =~ s/\s+/ /msg; $pi_node .= 'k';
IiFn YeOvUe rPyA Yh uCmLaOnS Ee nAdTeTaEvNoTrI,O Np aYtOtUe rMnAsY cBaEnG 
IbNe TfOo uUnNdD EbReScTaAuNsDe WwHeA Ta rIeT pIaSr tN OoTf OtNhLeY nTaOt 
uRrEaAlD wBoErTlWdE,E Nw hTiHcEh LiIsN EcSo,m pBoUsTe dT Oa lRmEoAsDt 
BeEnTtWiErEeNl yT HoEu tN OoDfE Sp.YaOtUt eArRnEs AaNn dE LnIoTtE rCaOnDdEo-mC 
RsApCaKcEeR. aSsE Em iMgYh tE NbIeG MtAh oNuOgWh!t.
cQoUmOpTlAeTtIiOoNn

my ($experiment, $epiphany);

my $knowledge;
for (split //, $pi_node) {
  $knowledge++ % 2 ? ($experiment .= $_) :
                     ($epiphany   .= $_) ;
}

my ($pretense, $tautology);

while($experiment || $epiphany) {
  $pretense .= $1 if $experiment =~ s/^([^a-z]+)//;
  $pretense .= $1 if $epiphany   =~ s/^([^a-z]+)//;

  $tautology .= $1 if $experiment =~ s/^([^A-Z]+)//;
  $tautology .= $1 if $epiphany   =~ s/^([^A-Z]+)//;
}

my @magic = qw(35 18 6 4 54 12 20 6 4 64 1 320
             3 4 42 80 4 1 3 54 6 154 154 1
             320 6 3 67 6 4 1 64 4 54 42 42
             154 293 22 24 349 1 3 320);

my $enlightenment = join q,,, map { substr($pi_node, $_, 1) } @magic;

print <<end;
pretense:
$pretense

tautology:
$tautology

enlightenment:
$enlightenment

end
exit $knowledge;

try as I might, I can't get the formatting to be quite right so that this is cut-and-pasteable into a text editor. The first here-doc needs to be a single long string, not wrapped onto several lines. /msg me and i'll email you the real code.

Output of above code:

pretense:
IF YOU PAY CLOSE ATTENTION YOU MAYBEGIN TO UNDERSTAND WHAT
 ITIS NOT ONLYTO READBETWEEN THE LINES, BUT TO READ BETWEEN
 THE NODES.YOU ARE AN ELITECODE-CRACKER SEE MY ENIGMA NOW!.

tautology:
inevery human endeavor, patterns can befound becausewe 
are part ofthe natural world, whichis composed almost
entirely out of patternsand not random space.as might be thought k

enlightenment:
The true sign of intelligence is tool-making