In Indian Vedic astrology, the 3rd house is generally considered to represent siblings. According to the Parashar Hora Shastra and the Phaldeepika, this house governs relationships with siblings, short journeys, and communication. The placement and aspects of the planet Mercury in a birth chart are also believed to influence one's relationships with siblings.
In Vedic astrology, Mercury is considered the planet of communication, intelligence, and mental acuity. Its placement and aspects in a birth chart can therefore greatly influence one's relationships with siblings, as well as the type of relationship they have.
A strong, well-placed Mercury in the 3rd house of a birth chart can indicate good communication and a close relationship with siblings. It may also indicate that the person is intelligent and articulate, able to effectively communicate and express themselves to their siblings.
On the other hand, if Mercury is weak, afflicted, or placed in inimical signs in the 3rd house, it may indicate strained relationships with siblings and difficulties in communication. This could manifest as misunderstandings, arguments, and a lack of connection with one's siblings.
It is important to note that astrology is a complex system and that the influence of any planet in a birth chart is dependent on many factors, including the placement and aspects of other planets, the overall strength of the chart, and the specific life circumstances of the individual.
In Vedic astrology, divisional charts, also known as Varga charts, provide a more detailed and specific analysis of various areas of life. The 9th divisional chart, also known as the Navamsa chart, is often considered to be particularly relevant for relationships and marriage. However, the 3rd divisional chart, also known as the Drekkana chart, is also believed to provide important insights into one's relationships with siblings and other close family members.
The Drekkana chart is formed by dividing each sign into three equal parts, with each part representing a different facet of life. The Drekkana chart provides a more in-depth understanding of the 3rd house and its influences, including relationships with siblings, communication, and short journeys.
When analyzing the Drekkana chart, astrologers look at the placement of the planets in the chart, as well as their aspects, to gain a more detailed understanding of the individual's relationships with siblings. For example, a strong, well-placed Moon in the Drekkana chart may indicate a close and nurturing relationship with siblings, while a weak or afflicted Moon could indicate conflicts or misunderstandings with siblings.
It is important to note that the divisional charts provide additional information to the birth chart and should be used in conjunction with the birth chart to get a complete picture.
In Vedic astrology, the Drekkana chart can provide some insight into the number of siblings and their gender, but it is not considered the definitive indicator of these details. Other factors in the birth chart, such as the placement of the Moon and other planets, as well as the overall strength and harmony of the chart, must also be taken into consideration.
The placement of the Moon in the Drekkana chart is often used to determine the number of siblings, with the number of planets in the Drekkana chart also being considered. For example, if there are two planets in the Drekkana chart, it may indicate two siblings.
The gender of siblings can sometimes be indicated by the placement of Mars in the Drekkana chart. Mars is associated with masculinity, so if Mars is placed in the Drekkana chart in a male sign, it may indicate a male sibling. Similarly, if Mars is placed in a female sign, it may indicate a female sibling.
However, these indications are not absolute and should be interpreted in the context of the overall birth chart and the individual's life circumstances. It is also important to remember that astrology is a complex system and that the influence of any planet or chart can be influenced by many factors.