What did Achilles ask his mother Thetis to do?

1) Achilles calls on his mother, the goddess Thetis; she hears him and emerges from her home in the sea. He weeps and asks his mother to help him to win justice. Zeus is in Thetis' debt; in a revolt of the gods in which Zeus was nearly defeated, only Thetis' intervention saved him. Achilles tells her what has happened and asks Thetis to go as a suppliant to Zeus, to ask him to intervene so that the Achaeans might know suffering as long as Achilles does not fight.