Bantwana will meet Morocco in their final qualifier in Sale on Saturday, having won the first leg 5-1 at Soweto's Dobsonville Stadium earlier this month.
The contest will kick off at 14h30 (16h30 SA time) at Stade Boubker Aama.
"The World Cup is for elite national teams," said Jordaan to Simphiwe Dludlu's side on the eve of their departure to north Africa this afternoon.
"So qualification means you are one of the best 16 teams in the world, it's what it means. It means each and every player is considered one of the best players in the world.
"Now the advantage is that if it comes at a young age, it's a huge possible future for you and we hardly had that kind of start. We only once qualified for Trinidad and Tobago - U-17. So this is a unique opportunity for us, so it is very important."
He added: "You are 90 minutes away from the World Cup in Uruguay. It's a huge, huge opportunity for South African football and it's in your hands.
"The fact you have such a big lead is a big plus for you. But every match is a new match, has new circumstances, has new challenges.
"You don't know if it will be the same Morocco team that was here. You may face 15 new players and have to play a different team, because no coach is going to lose 5-1 and is going to bring the same players - it's not going to happen."