The Fates are a group of three weaving goddesses who assign individual destinies to mortals at birth. Their names are Clotho (the Spinner), Lachesis (the Alloter) and Atropos (the Inflexible). In the older myths, they were the daughters of Nyx, but later, they are more often portrayed as the offspring of Zeus and Themis. In Orphic cosmogony, their mother is said to have been Ananke orNecessity. Either way, they had enormous power and even Zeus was unable to recall their decisions.
The Moirai, or Fates, are usually thought of as three sisters.
Your death has already been decided by the Fates, Agrius.
Means an event you were trying to avoid was meant to happen to you. In terms of real life, fate is something you can't escape and is uncontrollable. In greek mythology The Fates are a group of three weaving goddesses who assign individual destinies to mortals at birth. So to be on their agenda means your on their schedule and not your own. Most of the time it means death.
Thief: *Sitting in Bar*
Bounty Hunter: Looks Like I found you on Fate's Agenda.
Bounty Hunter: *Kills Him*