As per Chabad-Lubavitch messianism, Menachem Mendel Schneerson openly declared his deceased father-in-law, the former 6th "Rebbe" of Chabad Lubavitch, to be the Messiah. He published about Yosef Yitzchak Schneersohn to be ""Atzmus u'mehus alein vi er hat zich areingeshtalt in a guf"" (Yiddish and English for: "Essence and Existence God which has placed itself in a body"). The gravesite of his deceased father-in-law Yosef Yitzchak Schneersohn, known as "the "Ohel"", became a central point of focus for Menachem Mendel Schneerson's prayers and supplications.