The Spanish boss saw his side achieve the impossible with an incredible comeback at the Nou Camp.
Paris Saint-Germain's 4-0 lead on aggregate in their Champions League round of 16 tie appeared too much to overturn.
No side had ever fought back from a four-goal deficit in the competition's history.
However, a 3-0 lead early in the second half gave the Catalan giants hope.
Luis Enrique was left delighted after Barcelona's stunning recovery at the Nou Camp against PSG
Edinson Cavani's goal then look to have killed the tie, but three late goals (Neymar 2, Sergi Roberto 1) clinched victory.
Enrique revealed recently he is stepping down at the end of the season, but tonight's scenes will live long in his memory.
And he revealed the key to the comeback was Barca's finishing and ruthlessness on the night in front of goal – with their efficiency earning a quarter-final place.
"I was brought to my knees," Enrique said.
Barcelona fans react on Twitter after unbelievable comeback against PSG
Wed, March 8, 2017
Barcelona fans have gone mental on Twitter after the Catalans came back from 4-0 down against Paris Saint-Germain to win 6-5 on aggregate in their Champions League last-16 tie
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Twitter reacts as Barcelona complete an unbelievable comeback against PSG
The key was our efficiency. The sixth goal was scored with the hope of the fan
"I would like to thank everyone who kept their faith after we lost 4-0. This is dedicated to them because this isn’t the Harlem Globetrotters, this is football.
"I don’t think anyone stopped believing. After seeing them sit back despite the goal, the team were incredible.
"We risked everything and it paid off. You get finales like this very occasionally in football and this time it was our turn.
"A feat like this does everyone good and I’m delighted to enjoy a moment like this. The key was our efficiency. The sixth goal was scored with the hope of the fan who was on the other side of the world."