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Omega is the last letter of the Greek alphabet. Taken to mean death, the end of life.
Death is finite and somber, however Omega is neither. Omega is a continuous curve of life that sustains all beings that it kills. An end of an era brings in a beginning of another, a twinkle of electricity emerging from a dead spark.
There can be many omegas happening at once. New plant growth from dead foliage. A new body of a starfish from a lost limb. These omegas don't have a big impact on others. They happen and life moves on.
But once in an era, an omega happens that alters time itself. The sheer power of the omega causes a change so powerful that it changes the universe forever.
These omegas are no accident. They don't just happen. It take a lot of deliberate power and force to even jump start the twinkle, those of several orders of magnitude.
But to make the omega truly powerful, truly universe-altering, it requires the power of sheer will. Does it sound cliche Maybe. But this type of sheer will is not something that is taught. Not something that can be learned.
It's funny how the most powerful things come in threes. Deaths, births, even the fates themselves. So it's fitting that our story ends and begins with the three of us. Sisters, completely different, separated by death itself, reunited in the most peculiar of circumstances. Unwilling to bend to even the darkest of situations forced from each other by the most absolute end, and the most glorious beginning.