How do you wake up in the cosmodrome as an Awoken...? According to the timeline that would be essentially impossible due to how the awoken were born and possibly not even in the same universe when you did die according to the ghost.
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That would be incorrect. After being born in the distributary (a double ringed planet inside a singularity), mara led part of the awoken back to sol to settle in the reef, once there a faction of about 1/3 of the mortal awoken leave against maras will to help humanity under the traveler. All of this happened well before our guardian was revived.