The ark may be more or less elaborate, even a cabinet not structurally integral to the building or a portable arrangement whereby a Torah is brought into a space temporarily used for worship. There must also be a table from which the Torah is read. The table, called "bimah" by eastern Ashkenazim, "almemmar" (or "balemmer") by Central and Western Ashkenazim and "tebah" by Sephardim, where the Torah is read (and from where the services are conducted in Sephardi synagogues) can range from an elaborate platform integral to the building (many early modern synagogues of central Europe featured bimahs with pillars that rose to support the ceiling), to elaborate free-standing raised platforms, to simple tables. A "ner tamid", a constantly lit light as a reminder of the constantly lit "menorah" of the Temple in Jerusalem. Many synagogues, mainly in Ashkenazi communities, feature a pulpit facing the congregation from which to address the assembled. All synagogues require an "amud" (Hebrew for "post" or "column"), a desk facing the Ark from which the "Hazzan" (reader, or prayer leader) leads the prayers.