More and more people have been coming to 770 – home and synagogue of the Rebbe King Moshiach Shlita, and it has become necessary to expand the building more and more, in a way of breaking boundaries, like building a new building. The Rebbe King Moshiach Shlita placed a cornerstone for the expansion of 770-Home of Moshiach. This is the place where the third Beis Hamikdash (Holy Temple) will first be revealed, and then it will go together with 770-Home of Moshiach to Jerusalem. It is actually the place of the future Beis Hamikdash! From this it is understood how great of a merit it is for every Jew to take part, physically and/or monetarily, and the more the better, in building 770-Home of Moshiach, as a preparation for the third Beis Hamikdash to descend and be revealed there literally immediately!
(See talks of the Lubavitcher Rebbe King Moshiach Shlita, Kuntres Beis Rabbeinu Shebibavel)