Man of Mystery (Part II)

I found Herman Melville's "Bartleby the Scrivener" rather perplexing. I understood the plot of the tale, and I understood Bartleby's character. I was amused by Melville's dry humor by way of Turkey and Nippers, and I felt sympathy toward Bartleby throughout, especially in his death. Yet I am not sure I understand Bartleby's motivation. It is clear that something is off psychologically within Bartleby, yet I am never able to fully ascertain a cause. The only clue which the reader is given is when Melville reveals that "Bartleby had been a subordinate clerk in the Dead Letter Office at Washington" and reflects upon this occupation of "Dead letters! does it not sound like dead men?"

In researching the Dead Letter Office (and by "research," I of course mean "Wikipedia"), I discovered that the office concerns letters which cannot be delivered because the address is either illegible, insufficient, or nonexistent. If all other methods of discovering the proper address are exhausted, the letter is then shredded--or, in Melville's time, burned. Melville indicates that he considers working in this office would likely be a hopelessly depressing job as one would constantly be destroying heartfelt pieces of correspondence. Yet I still do not believe that that alone could justify Bartleby's queer personality. I honestly cannot give a definitive answer myself concerning Bartleby's disposition; perhaps it simply cannot be surmised correctly. Perhaps Bartleby is intended to remain an enigma.