She struggled with depression for years, but she's more 'centered' now and able to live a full life.
The investigation has 'centered' [='focused'] mainly 'on/upon' the alleged misuse of public funds.
She 'centers' her life 'on/around' her children. = Her life is 'centered on/around' her children.
(..) My other kids are staying with them. This is where the girls used to sleep, but we don't use it anymore. Why not? Well, most of the activity centered in this room. We were quite afraid that someone might get hurt, which is why we keep it locked. I understand that Janet has levitated. (..)2016 The Conjuring 2