They’re just different spells.  They’re spells, but from a different source and maybe a lil weird, but not really that special.  Near as I can tell.  I am sure I’m missing something because every time Dark Sun comes up there’s a grip ton of hand wringing about getting Psionics right.  It just seems like spells to me.  Spells with a different but not much different rule system.  Sorcerer, but with unique spells.  I don’t get why it’s a big deal and why it’s not just a different spell list.  Help me understand.  Or confirm, it’s just spells With a new name.