The hardest way of living a life for anyone is living without a purpose.
At this moment, Sirona is leading life in the same manner.
All these years her purpose has been or to be more precise her purpose was made to be a tool for the Usaine Sect.
There is nothing more important to her than researching and making new formations, inscriptions, weapons, and traps. Every research she undertook was chosen and applied in such a way that they serve the purpose of the sect.
All she derived from that is the satisfaction of making a new thing, creating something, and getting the praises of one person whom she strived to receive an acknowledgment from.
But now, all her purpose, her goals turned out to be a hoax. The trust she placed on the sect was completely gone and she doesn't know why she is living.
At this moment, she is living because she is still searching for a reason to live.