Not only would a win take the Eagles through the 40-point barrier, and practically guarantee them safety this season, it would also leave one of their rivals for a top-six finish 10 points in their wake.
"With 40 points, we will have reached our main objective for the season," said Veh at a press conference.
"But we still have to get there yet, and I will only say what I have to say when we do it."
Gladbach are currently seven points behind Frankfurt and in desperate need for an away win to keep their own hopes alive of qualifying for Europe next season, something their elimination from the Europa League a week ago has given them a taste for.
"They are a team who should be vying for a place in Europe," Veh said. "They have a good structure and it's hard to play against them."
Frankfurt found that out to their cost in the reverse fixture last October when the Foals ran out 2-0 winners at the Borussia Park Stadion.
"What we did at home bears no relevance on this game," said Gladbach's Thorben Marx on his club's website.
"Frankfurt are playing a very good season. We know it is not going to be easy, but we also know that we have a good team.
"But we want to get something out of this game and, after picking up a point against Dortmund, we go to Frankfurt with self confidence.
"We just need to show what we are made of and then I hope we can score one goal more than them."
To help them achieve that, Gladbach have their top goalscorer Patrick Herrmann back from suspension while their next-best scorer Juan Arango is available after injury.
Frankfurt top-scorer Alexander Meier should also be fit after recovering from a back injury, while his partner of choice Takashi Inui is also available again after a ban.