The Essence of Islam – Volume II — Page 333
Jihad with the Sword 333 hearts and foster their mercy and should have sympathy for the afflicted. They should spread peace on the earth, for this would cause their faith to spread. They should not wonder how this would come about. As God Almighty has utilized the elements and all earthly means for the purpose of bringing about new inventions to serve human needs like mechanical locomotion, etc. , in the same way He will put His angels to work for the fulfilment of spiritual needs through heavenly signs, without the intervention of human agencies and there will appear many flashes of light whereby the eyes of multitudes will be opened. [Government Angrezi Aur Jihad, Rūḥānī Khazā'in, vol. 17, p. 15]