The second-placed Vikings travel to Belle Vue tomorrow to take on fourth-placed Wakefield, who sit two points below them on the ladder.
A win for the Wildcats will put them on equal points with Widnes with two matches remaining in the Super 8s.
Wakefield face Halifax and Sheffield in the final two games of the Qualifiers, while Widnes meet Salford and Leigh.
Miller is expecting a difficult game against the Vikings, who pummelled Bradford by 44 points last weekend.
“If we win this week it keeps our goal alive of finishing in that top three,” the 23-year old said..
“It will take a lot of pressure off us if we can win this week but it’s definitely not going to be an easy game. Widnes played really well last week and we’re going to have to be on top of our game to match them.”
The Vikings have only lost once in the Super 8s and that was a tight four-point loss to Hull KR.
“They’re a really good team,” Miller said.
“They’ve got some big boys who just keep going forward. Kevin Brown pulling the strings, along with Mellor, they’re in great form. We’ve got to be on our game if we want to stop them two.”
Miller, who has been in eye-catching form in recent weeks, believes the Belle Vue crowd will be a big bonus in tomorrow’s game.
“The home advantage will be very helpful,” he added.
“The fans have been great all year. We haven’t had the best of seasons but they keep turning up in numbers supporting us. We’re very appreciative of that and we expect them to be very loud tomorrow with what’s on the line.”