In verse number 47 - the sage Parashara has classified the planets on the basis of Dhatu, Moola and Jeeva.
Moola means the roots; and Moola division is related with the existence of the self in the world.
Jeeva means the living beings and is basically related with the relationships of the native.
The life giving Planet Sun and the Venus are the lords of Moola.
Remaining planets viz. Mercury, Jupiter and Ketu rule over Jeeva.