The Third House Lord and Marriage

The 3rd house lord affects marriage only through a link to the 7th, because the 3rd itself is siblings, courage, writing, and short efforts. That limit would be false for the 7th lord, who speaks about marriage even with no extra link. For Mesha lagna the 3rd lord is Mercury and the 7th lord is Venus. Mercury can sit in the 3rd for a lifetime and say nothing about the spouse. If Mercury occupies the 7th, aspects the 7th, or exchanges signs with Venus, then the sibling-house lord has walked into the marriage. The effect is then Mercury's: talk, contracts, a spouse connected to trade or to nerves, sometimes a bond that is negotiated like a skill. It is not automatically a bad marriage. Mercury's condition decides the tone.

Courage and initiative are 3rd-house gifts. A 3rd lord in the 7th can show a spouse who is direct, a marriage that begins through one's own effort, or a restless partner who needs movement. It can also show the native's siblings tangled up in the wedding, since the 3rd is younger siblings in the usual scheme. None of these pictures is a rule of divorce. The 6th lord in the 7th would be the clearer strife combination. The 3rd is an upachaya, a house that can improve with effort, so its lord in the 7th often grows more useful with age rather than worse. D9 still has the last word on whether the spouse Mercury describes is the spouse the Navamsa supports. A chatty rashi promise and a fallen Mercury in D9 are not the same marriage.

Wearing emerald because the 3rd lord is Mercury, in the hope of fixing a marriage, strengthens Budha. That helps the marriage only when Mercury is actually tied to the 7th and is a graha you want louder. For Mesha, Mercury also rules the 6th. An emerald then feeds disputes as well as the 3rd. The marriage upaya, if any, follows the 7th lord, here Venus, and only when Venus is welcome. Timing follows the dasha of the 7th lord, not the dasha of every lord who happens to look at the 7th once. If the 3rd lord is asleep in Vimshottari, its marriage effect is asleep too. The question is popular because people hunt every lord for a wedding date. The 3rd lord gives a date only in the years it is connected and running.