I have a question about this poem by Emily Dickinson?

JOY IN DEATH

BY

Emily Dickinson

If tolling bell I ask the cause.

'A soul has gone to God,'

I'm answered in a lonesome tone;

Is heaven then so sad?

That bells should joyful ring to tell

A soul had gone to heaven,

Would seem to me the proper way

A good news should be given.

When was this poem written and could could you give some background on the poem? That would help a lot. Thanks!!