Regarding the Haykal, Baháʼu'lláh writes that it refers to the human or
physical temple of the Manifestation of God (prophets of God). He states
that the Manifestation of God is a pure mirror that reflects the
sovereignty of God and manifests God's beauty and grandeur to mankind. In
essence Baháʼu'lláh explains that the Manifestation of God is a "Living
Temple" and every time that Baháʼu'lláh addresses the Haykal he shows a new
facet of God's revelation.
The Haykal, which represents the Manifestation of God who spreads the Word
of God in the form of a human temple, has members each of whom symbolize
one of the signs and attributes of God. To the eyes of the Haykal he asks
it to not look at the world of creation, but instead to focus on the beauty
of God. To the Haykal's ears Baháʼu'lláh asks it to become deaf to the
voices of the ungodly and to listen to the Word of God. To the tongue of
the Haykal Baháʼu'lláh states that it has been created to mention the name
of God. To the hands of the Haykal Baháʼu'lláh asks them to stretch out
upon all humankind and hold within their grasp the reins of God. Finally,
Baháʼu'lláh states that from the heart of the Haykal knowledge will emerge
and raise scientists who will bring about technological achievements.