SAHASTRAKSH - as explained in Verse - 01, Purush Sukta, Rig Veda
|| Om sahasra shirsha purushaha, sahastraksha sahasrapat ||
|| Sa bhumim vishvato vritva, atyatishthad dhashangulam ||
Meaning - "The Purusha (the Supreme Being) has a thousand heads, a thousand eyes and a thousand feet.
He has enveloped this world from all sides and has (even) transcended it by ten angulas or inches"