Soulsmithing

Soulsmithing is the process of shaping Anima into spiritual bodies, be they enchanted items, sublime artifacts, Soul-homes, Genus Loci, Gods or the limbs and organs of an soul.
As Anima is made of memory, form follows function. If you want a magical sense that will follow you life to life, you need to create an eye, fill it with your understanding of the thing you're looking for, and then connect it to your spiritual body. If you wish to benifit from a type of energy or experience, you need to shape a mouth with teeth and a throat, and connect it to a stomach also made of anima. So on and so forth.
As you can imagine, this can rapidly turn your soul into a horrific monstrosity out of Cthulhu Mythos, the bible; book of Job or Summarian Mythology. It's not for nothing that the Archangels were described as wheels upon wheels filled with eyes, or that the Indian Devya had 1000 arms and 100 faces. These features had a purpose, beyond simply terrifying believers into placating the greed of their priests.