User blog comment:Son of poseidon perceus/SON OF NEPTUNE!/@comment-108.35.115.12-20110402133920/@comment-3459279-20110402174315

so far what is shown for people who get resurected is that they have to be able to offer something to Gaia, and they have to be in a position where she can get rid of them if necessary. This automatically rejects anyone who was good as they have defined it (Gaia has been identified as evil and only finds 'employee's in the fields of punishment) and anyone who could possibly be difficult to get rid of (such as Luke with his curse of Achilles).