BPHS ch. 37: benefics occupying the 6th, 7th and 8th bhavas counted from the Moon. The related Lagnadhi yoga in the same chapter reads benefics in the houses from the lagna itself rather than from the Moon.
Fruit
A king, a minister or an army chief, according to the strength of the planets forming it: eminence in the order of command, and the trust of those who rule.
Meaning
Adhi means superior or over, and the yoga is read as superiority over others: the benefics placed where they surround the Moon from behind and before. It is the benefic counterpart of Kemadruma, and the two are read together since both concern what stands beside the Moon.