Malkuth, sephirah  number 10 is situated at the base of the Tree of Life.  This sephirah is known as the Kingdom.  It is in Malkuth that we explore the Temple of the Earth Plane.

The Tree of Life is a spiritual tool that is used within Qabalah. The teachings of Qabalah are mapped out on the Tree of Life which acts in a similar way to that of a road map in that it provides the route back to the original Source and Almighty Creator.

More information on the Tree of Life

Qabalah workbook exploring Malkuth also available