Some Ans. Questions 2014 by -'Abdu'l-Bahá- 1 Para

Answer: Fate is of two kinds: One is irrevocable and the other is conditional, or, as it is said, impending. Irrevocable fate is that which cannot be changed or altered, while conditional fate is that which may or may not occur. Thus, the irrevocable fate for this lamp is that its oil will be burnt and consumed. Its eventual extinction is therefore certain, and it is impossible to change or alter this outcome, for such is its irrevocable fate. Likewise, a power has been created in the body of man whose depletion and exhaustion leads inevitably to the disintegration of the body. It is even as the oil in this lamp: After it has been burnt and consumed, the lamp will assuredly be extinguished (68:2)

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