"Everything is set up for an exciting end to the season, which will be a test of character, a test of that belief.
"But as I say, the momentum is with us at the moment, and hopefully we'll carry that on through to the end of the season."
There are many who feel the current side is the best in the club's history, although Giggs refused to be drawn into that debate.
"We're on a great run," Giggs said of a side who have lost just one game - a Carling Cup tie at Derby - in their last 31 in all competitions stretching back four months.
"We did it last season, we've carried on this season, and now we just need to see it through to the end.
"That has been our goal - not only to win the Champions League, but to defend it because no other team has done that.
"We've seen against Inter how difficult it's going to be. We need to play well every game, and concentration needs to be spot on."
Giggs returned to his old stamping ground of the left wing in Wednesday night's 2-0 Champions League victory over Inter Milan, a role he had thought was behind him, but one he is ready to revive as and when Sir Alex Ferguson requires.
"I never thought I'd be on the wing again," he said.
"But the manager set me up on the left, and no matter where you play, you want to be involved in the sort of games like against Inter.
"With Patrice (Evra) behind me, he is an attacking full-back who helps me out.
"I obviously don't play like I did 10 years ago, but Pat helps me in that respect.
"It's something I can occasionally go back to, but then I don't mind as long as I'm playing.
"I prefer positions in midfield and just off the front, but I can use my experience on the left, so I can definitely play there."
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