▁it ▁can ▁almost ▁definitely ▁be ▁attributed ▁to ▁the ▁Earth ▁element . ▁ ▁R ul ership ▁of ▁houses ▁▁ ▁Some ▁modern ▁ast ro log ers ▁assign ▁what ▁is ▁called ▁" natural " ▁r ul ership ▁of ▁each ▁house ▁of ▁the ▁hor os cope ▁to ▁a ▁different ▁planet , ▁in ▁the ▁same ▁way ▁as ▁the ▁z od iac ▁signs ▁are ▁said ▁to ▁have ▁r ul ers . ▁Trad itionally , ▁however , ▁the ▁r ul ership ▁of ▁houses ▁was ▁understood ▁to ▁apply ▁only ▁in ▁the ▁individual ▁birth - chart , ▁in ▁what ▁is ▁called ▁" acc ident al " ▁r ul ership . ▁This ▁understanding ▁is ▁followed ▁by ▁most ▁ast ro log ers . ▁In ▁this ▁case , ▁the ▁r ul ership ▁of ▁a ▁house ▁in ▁the ▁" native ' s " ▁hor os cope ▁is ▁associated ▁with ▁the ▁plan ets ▁that ▁rule ▁the ▁sign ▁on ▁the ▁c us p ▁of ▁the ▁house ▁and ▁with ▁any ▁plan ets ▁found ▁on ▁or ▁near ▁the ▁house ▁c us p . ▁The ▁r uling ▁planet ▁gu ides ▁the ▁expression ▁of ▁the ▁plan ets ▁occup ying ▁that ▁house , ▁similar ▁to ▁the ▁way ▁a ▁planet ▁on ▁the ▁ASC ▁express es ▁and ▁medi ates ▁the ▁expression ▁of ▁plan ets ▁throughout ▁the ▁chart ▁as ▁they ▁filter ▁through ▁one ' s ▁person ality ▁( symbol ized ▁by ▁the ▁ASC ▁and ▁ 1 st ▁house .) ▁▁ ▁There ▁are ▁several ▁different ▁scenarios ▁that ▁one ▁can ▁use ▁to ▁determine ▁the ▁r ul ership ▁of ▁a ▁house : ▁ ▁If ▁the ▁first ▁house ▁c us