Stases is the plural form of stasis, which means a state of little or no change.
Stases can be a good thing, like when things stay peaceful, or a bad thing, like when things stay stuck and don't get better.
Examples:
The country is in a stasis, with no new laws being made.
The patient's condition is in stasis, not getting better or worse.
The stases in the city lasted for many years, with no wars or fights.
The stases in the game made it boring, with no one winning or losing.
The stases in the story made it hard to read, with nothing changing.
The stases in the forest made it a peaceful place, with no animals fighting or running.