Is there a connection between the Sephirot and Tales of the Abyss?
Sephiroth in Tales of the Abyss.(TotA) is the name of the stream of energy that supports the upper world. In TotA, the lower world was filled with Miasma so they build a world above it and migrated there. Sephiroth is the collective name of the pillars that branches out to support the above land.

You can read more about Tales of the Abyss' Sephiroth here.