Waqf is differentiated from other acts of piety and charity being 'Sadaqah Jariyah' an ongoing charity that lasts as long as the heavens and the earth, generating an endless profit to the needy and a reward to the donors.  Hence the solution provided by Waqf and donors is sustainable because it goes beyond the present and the immediate needs of the needy to the future with its recurrent and renewable challenges.  This makes the needy feel safe and secure, because the source provided by Waqf ensures the solution to all occurring problems and emerging events.  Furthermore, Waqf gives the opportunity to treat problems from the roots, as it arms the needy with tranquility because they will receive, through Waqf, the education and skills required to prepare themselves, and move on from the stage of relying on donations to the stage of self-reliance.