Aspire to be mountains
The fire of ambition - Could reference Mauja's ambition. Could also reference his new home, since Aurora Basin is in the mountains.
Quiet as the dead
Won't you let me in? - Has been relatively quiet in his shell-shocked arrival back into Helovia.
The night contrasts
A shift from the dark - Color reference - light colored leopard.
Writing with your quill - Reference to his owl companion, Irma.
Cannot rewrite the past - He's been trapped in time until recently. He can't go back to where he was before.
You cannot escape this time. - He's literally escaped "time". This could also allude to the many stealths made for him previously.