The 1st house signifies your identity, physical characteristics, your self-image, outer personality, appearance, health and well-being, the physical body, vitality, attitude, temperament and your outlook upon the world. This is also known as the Lagna or Tanu bhava.
The 3rd house in astrology means younger siblings, neighbors, courage, mental and physical strength, initiative, entrepreneurial nature, studies, communications, short journeys, spiritual inclinations, writing, marketing, media, and communications. This house is also known as bhrathru or Shourya Bhav. This house indicates courage, relatives, willpower, siblings and self-efforts.
When your 1st lord is in the 3rd house, it means your entire life path is closely connected to the matters described in the 3rd house. You may see a close connection between your life’s purpose and 3rd house. It will change according to the planets, aspects, and planetary avesthas. When the 1st lord is in the 3rd house, you will make your identity through your own efforts.
Aries: Mars is your Lagna lord. Since Mars is the soldier in the zodiac, you may display the fighter spirit when you deal with the matters of the 3rd house. Your siblings, neighbors and relatives come within 3rd house, so your communication with them may be very spontaneous and this may create issues with them. They may see you as a very competent person and they may even try to overpower you. However, this may not be an easy task for them. You may have to put so much of an effort to make savings or earnings. This is a clear indication of a person who works with his own efforts. Your self-efforts can give you a lot of success.
Taurus: Your Lagna lord is Venus. When it is in 3rd house, Venus will be in Cancer. It means you use your energy in creative fields. You may be an artist. You may have a very strong relationship with your siblings and relatives. Third house means communication. You speak comfortably with others. This indicates a person working in the media industry. You may be a peace keeper with your speaking skills, therefore good at managing relations.
Gemini: When your Mercury is in 3rd house, then it will be in Leo. Mercury is the planet of communication, logic, technology, intellect, speech, relatives, communication, media, electronics, technology, and siblings. You may be a writer or a person in the media. You may even work in technology related domain. Your mind is active and you are a multi-tasker too!
Cancer: When you see your 1st lord Moon in 3rd house, it will be in the sign of Virgo. Virgo represents issues, enemies, responsibilities and serious issues of life. You may feel a little over burdened. Your mother may have less immunity power. Your entire effort will be in controlling your thoughts. The moon is the mind and emotion in astrology. You may be little directionless when it is in the third house, especially in the sign of Virgo. Virgo is not a great sign for a man to be in. Your efforts should strengthen your mind. Then you may find easy to handle the matters of the 3rd house.
Leo: When you see the Sun in Libra, it will be in your 3rd house. Sun is debilitated or irritated in Libra. The Sun represents our ego and self esteem. It may get questioned by the situations and people very often. You are a person working in the media or related industries. You may have to identify that Sun is not happy here and you may have to be very cautious in relationship with relatives and siblings. You may have to put a lot of effort and be humble, to be at peace with all.
Virgo: Mercury will be your Lagna lord and it will be in Scorpio if it is in the 3rd house. Scorpio deals with occult, mysteries, hidden knowledge, partnership and all. You may be a writer or communicator of hidden knowledge. You can be an undercover agent. You may have an interest in astrology or mystical sciences. You may be a business man too, as a Scorpio signifies business partnership and shared resources.
Libra: Venus will be your Lagna lord and it will be in the sign of Sagittarius when you see it in the 3rd house. You may expect more interest towards spiritual learning, foreign trips and foreign culture. Your siblings may go overseas. You may do some work by using your creativity and this is good for media related activities.
Scorpio: Mars will be in the sign of Capricorn, which is also the exaltation sign of Mars. This is making you very competent in jobs related to communication. You can even be interested in technology or electronics domain. At the same time you have to put your own efforts to maintain good relation with your siblings and other relatives.
Sagittarius: Jupiter will be in the sign of Aquarius. It is the house of writing, media, self efforts and siblings. This will make you write spiritual stuff and you will be sharing your spiritual wisdom with others. You will be a good administrator and a successful manager too. Your communications will be very deep and others will like to listen to you. Jupiter is a planet of expansion and it shows that your thoughts will be in an expansive mode.
Capricorn: Your Lagna lord is Saturn and if it is in the 3rd house, then it will be in the sign of Pisces. Saturn in 3rd house shows that you are a person who keeps on working with your communication skills. There may be some kind of repetitiveness in the work. The domain of work may be in some isolated places or in places of rejuvenation. You may be a business man who likes to uplift others. You have to put a lot of effort to maintain good relationship with your relatives.
Aquarius: Saturn will be in the 3rd house, that too in the sign of Aries which is the debilitation sign of Saturn. This planet is restless and irritated here. This may make you to put much effort in the works related to the media industry. There can be some hidden obstructions in dealing with all the 3rd house matters like siblings, neighbors, courage, mental and physical strength, initiatives, entrepreneurial nature, studies, short journeys, spiritual inclination, writing, marketing, media, and communications. Don’t worry, 3rd house is an Upchaya house and it will progress according to the time.
Pisces: Jupiter is your Lagna lord and it will be in the sign of Taurus when it is in the 3rd house. You are a creative thinker. Jupiter is helping you to use your writing and spiritual skills to make money. This shows that you are a trader or a business man. You may use your spiritual knowledge in your daily life. This is a planet of expansion and this may give you more opportunities in trade.