Disappointing results against Fulham and Chelsea have deflated the mood somewhat after positive performances against Leeds and Liverpool and next up are Glenn Hoddle's former club Saints - unbeaten so far and fifth in the table.
But the Portugese star, still waiting for his first goal, believes a win can catapult us onto a run of form.
"Saturday's game is very important for Tottenham," said Helder at Spurs Lodge. "The last couple of games haven't been very good and we just need the confidence because we have very good players.
"If we get the win on Saturday, then we'll get the confident and then we can go higher.
"We just need that one win and I'm sure things will get better."
Even in his broken English, Helder Postiga is able to spell out the importance of Saturday's clash against Southampton.