Just going by the "Mothership" titles of the Tales series
- Tales of Phantasia
- Tales of Destiny
- Tales of Eternia
- Tales of Symphonia*
- Tales of Rebirth*
- Tales of Legendia
- Tales of the Abyss
- Tales of Innocence*
- Tales of Vesperia*
- Tales of Hearts*
- Tales of Graces
- Tales of Xillia*
- Tales of Zestiria*
- Tales of Berseria*
what does the end part represent in them?
I know that with Hearts R and Graces F, the R stands for Remake or Re-imagination and the F stands for "Future" because of Graces' extra content
There are also terms that are used in remakes or ports of games: "R" stands for "remake" or "Re-imagination" (as in Hearts R), while "F" in Graces f stood for "future", in reference to the game's extra story content.
Tales (Video Games Series) > Terminology
but this doesn't explain what Hearts or Graces means in regards to the game. and i know it can't be worlds because
- Eternia is set on Inferia and Celestia
- The Abyss is set on Auldrant
- Zestiria and Berseria are on the same world just different eras
*: i have not played these yet so it may actually be obvious if i was to play them but for completeness i ask about them anyway