Durban - South Africans need to pray and take a stand against various crises facing the country, Princess Nandi Zulu said on Thursday.Zulu, the second daughter of King Goodwill Zwelithini, was speaking at the Hilton Hotel in Durban during a youth dialogue ahead of the upcoming 21st International Aids Conference."We should protect our families, ourselves and our communities. I would like to give a challenge to everyone to pray that God intervenes. It is scary the level of crisis we are in. There are financial crises, poverty, social ills and of course HIV/Aids," she said.Zulu said rapid change was needed to affect a shift in society."We need to start taking a stand as individuals. God creates something every day. Why can't we refresh our thinking as a nation?"Zulu said it was good that world leaders and experts in the field of HIV/Aids would gather for the Aids conference in Durban, however, she urged people to take control of their own lives."This is the 21st Aids conference talking about the same thing. We must start doing things differently. Choices start with an individual. You must heed the call of our leaders and be mindful of this disease and other ills."She added that young people needed to channel their vigour towards positive things."Young people are energetic. You need to channel that energy to the right things. It is all in your hands now."