Life is a campaign against foes; it is a battle with obstacles, temptations. These foes are within man and so; the battle has to be incessant and perpetual. Like the virus that thrives on the bloodstream, the vices of lust, greed, hate, malice, pride and envy sap the energy and faith of man and reduce him to untimely fall. Ravana had scholarship, strength, wealth, power, authority, the Grace of God – but, the virus of lust and pride, which lodged in his mind, brought about his destruction, despite all his attainments. He could not dwell in peace and joy for a moment after the virus started work. Virtue is strength; Vice is weakness. (SSS Vol. 6, pp. 50-51)