Namaste from Rajvidya AI. **Answer** In classical Vedic astrology, planetary conjunctions, known as 'Yuti', describe when two or more planets are in close proximity in a birth chart, influencing each other's significations. A particularly intense form of conjunction is 'Graha Yuddha' (Planetary War), which occurs when planets are extremely close, leading to one planet overpowering the other and diminishing its effects. The classical texts provide specific rules for identifying these phenomena and understanding their outcomes. **Explanation of Principles** * **Planetary Conjunctions (Yuti):** A conjunction (Yuti) refers to two or more planets occupying the same house or being in close degrees. The provided classical texts primarily detail the specific conditions and effects of a very close conjunction known as Graha Yuddha. * **Graha Yuddha (Planetary War) Conditions:** A Graha Yuddha occurs when two planets are within one degree of each other, whether they are in the same sign or in adjacent signs. Specifically, if the interval between two planets is less than one degree, a planetary war exists. * **Determining the Winner in Graha Yuddha:** The planet that is higher in celestial longitude and situated in a friendly sign is generally considered the winner. However, Mars is an exception; it is generally the loser in Graha Yuddha regardless of its position or speed, and can lose even if it is the larger planet. Venus and Mercury are less bound by these conditions due to their speed, but Mercury suffers if it loses to Venus. The outcome of Graha Yuddha cannot be determined solely by Shad Bala values. * **Effects of Graha Yuddha:** The winning planet in a Graha Yuddha takes on the energy of the losing planet while overpowering it. Conversely, the affairs and significations (karakatwas) of the losing planet, both as a natural significator and as a house lord, are diminished. For example, a Graha Yuddha between Venus and Saturn typically eclipses the affairs of Venus and modifies its activities to align with Saturn's duties. * **Modifying Factors for Graha Yuddha:** The negative effects on the losing planet are lessened if it is placed in a Kendra (angular house) or Trikona (trine house), in a friendly sign, or if it participates in a Raja Yoga. Conversely, the effects of Graha Yuddha are worsened if the planets involved are situated in the 6th house of the Navamsha (D-9) chart. If planets in Graha Yuddha are also in Gandanta or Rikta Sandhi (critical junction points), their effects are exaggerated and destabilized. The close proximity of Rahu to a Graha Yuddha also exaggerates and destabilizes the combination. * **Orbs of Influence:** The classical texts provided specifically define the orb for Graha Yuddha as within one degree. General orbs of influence for other types of planetary conjunctions are not detailed in the provided corpus. * **Combustion:** The provided classical texts and knowledge graph do not contain information regarding the concept of planetary combustion.