Remember me when I am gone away,
Gone far away into the silent land;
When you can no more hold me by the hand,
Nor I half turn to go yet turning stay.
Remember me when no more, day by day,
You tell me of our future that you planned:
Only remember me; you understand
It will be late to counsel then or pray.
Yet if you should forget me for a while
 And afterwards remember, do not grieve:
 For if the darkness and corruption leave
The use of ‘counsel’ and ‘pray’ suggests a spiritual connection between speaker and listener, implying that the listener is concerned for the state of the speaker’s soul. 
 The claim that after death it will be ‘late’ to pray indicates that the speaker just wants to be remembered. Note that she does not share John Newman’s belief in the validity of prayers for the dead. So after death the spiritual fate of the departed is sealed. The Anglican Church did not encourage praying for the dead so she may be expressing this. Rossetti was a High Anglican, and this fits her beliefs.
Remember