A realistic Redknapp admitted he was struggling to come to terms with the ‘impossible dream’ after the scoreless draw at White Hart Lane saw his side through 1-0 on aggregate.
Peter Crouch’s goal at the San Siro was enough to send Tottenham into the CL quarter-finals for the first time, two and a half years after Redknapp inherited a side second from bottom in the EPL.
Real Madrid or Barcelona could be next up for Spurs in Europe and Redknapp is adamant his players should enjoy the moment.
“This is an impossible dream that we have achieved so far,” he said.
“Two years ago if you would have said that we would have made it to the quarter-finals of the Champions League, I would have thought you were crazy.
“It’s our first year in the club’s history we have ever made Champions League football so that was a fantastic achievement to have won our group and to do what we have done against AC Milan.
“We have beaten AC Milan over two legs with two clean sheets and won our group, which was the hardest of the lot.”
Spurs never really looked comfortable against the giants of Italian and European football as they sought to preserve that San Siro lead.
“It was always going to be nervy night,” added Redknapp.
“If you think you are going to smash AC Milan out of sight then obviously you haven’t been watching football over the last few years.
“Sandro was immense in midfield, for a young lad with limited experience of the Champions League.
“We defended for our lives and the keeper did well for us too.”