...Concerning the meaning of "Resurrection": although this term is often
used by Baha'u'llah in His Writings, as in the passage quoted in your
letter, its meaning is figurative. The tomb mentioned is also allegorical,
i.e. the tomb of unbelief. The Day of Resurrection, according to Baha'i
interpretation, is the Judgement Day, the Day when unbelievers will be
called upon to give account of their actions, and whether the world has
prevented them from acknowledging the new Revelation.
The passage in Baha'u'llah's Tablet in which He explains the Sura of "The
Sun" should not be interpreted literally. It does not mean that after the
Day of Resurrection praise and peace will cease to be vouchsafed to the
Prophet. Rather it means to the end of time, i.e. indefinitely and for all
times.
The intercession spoken of by Baha'u'llah in one of His prayers which you
have quoted is a purely spiritual act and is applicable to Muhammad as
well as to all Prophets. This passage, however, refers more particularly
to that kind of intercession in which Muslims believe, though the manner
and circumstances of it, according to Baha'i belief, are mysterious and
unknowable.