The victory over Death as indicated in Savitri is described towards the end of the Canto.
‘At last he knew defeat inevitable
And left crumbling the shape that he had worn,
Abandoning hope to make man’s soul his prey
And force to be mortal the immortal spirit.’
It means that the action of Death which is an all pervasive ignorance holding the human soul hypnotised and captive within the cage of matter will loosen its grip eventually releasing the soul from its bandage to ignorance. Physical death is only a last consequence of the action of ignorance. Once human souls are released from its grip then we will open more and more to the Divine Love and Grace leading eventually to the complete victory even over physical death.
Affectionately,
Alok Da