what does "find her center"mean?
She unrolled her own mat, sat. When the others did the same, the fist clenched in her belly loosened a little.
Though she couldn’t find her center, her balance, her own sense of calm, she took the class through the hour.
Maureen lingered after the class ended. Abra expected no less.
“Your place or mine?” Maureen asked.
“Mine. I have a cleaning job in an hour, I need to change.”
“Good. You can give me a lift. I walked.”
“Sundaes last night?”2.what does "expected no less"mean?