Thou hast asked in regard to the 10th verse of the 21st chapter of Revelation and to the 17th verse:
Know that the firmament of the bright sun of the world of possibilities is divided into twelve sections, according to mathematical principles, which are called the twelve constellations; likewise, the Sun of Truth manifests and pours forth His bounty in twelve constellations of holiness. By these constellations are meant holy souls who are the manifestations of purity and the dawning-points of the lights of Unity. Observe that in the day of His Holiness the Speaker of God (Moses), there were twelve holy souls who were the leaders of the Truth. In like manner, in the cycle of His Holiness the Spirit (Jesus Christ), note that there were twelve apostles under the shadow of the light of the Most High, and the Sun of Truth was manifested through those bright dawning-places like unto the phenomenal sun. Likewise, in the time of His Holiness Mohammed, consider that there were twelve dawning points of holiness who were the manifestations of confirmation. Such is the case.