What if Death was more of a place rather than an idea of something, or a former someone? Loosely represented and given a physical manifestation from our own incomplete understandings of it. Death is a quiet, dark, brief, and gentle plane of existence inhabiting the void somewhere between "life" and the "afterlife". Here, nothing exists except death... and The Morrigan, who deliver the names of those who death is to guide through the void and into their afterlives... freeing them from the pettiness and senselessness of the world.
"Death is just another path... one which we all must take". ~Gandalf