Geasa - Sacred Taboos
Personal prohibitions and obligations that shape one's fate and protect one's power.
Geasa were sacred bonds placed upon warriors, kings, and heroes. These taboos, if broken, led to misfortune or death. They also granted power when honored. Geasa represent the Celtic understanding that power comes with responsibility and limitation.
The geis binds the hero; to break it is to break oneself.
Geasa illustrate the Celtic belief in the binding power of spoken prohibitions and fate.
Ulster Cycle
Written about in
- What Celtic tradition says about knowing yourself
A geis was a personal prohibition that shaped one particular life. In this system, knowing yourself included knowing the specific things that you, and not everybody, must never do.
- What Celtic tradition says about what to say and what to leave unsaid
A geis was a spoken prohibition binding a hero, often laid on him by someone else, and breaking it destroyed him. Words spoken over a person's life are held to keep working long after the speaker has gone.