6th house is known as 'the hidden world, treasure house of mercy and providential help'. 6th house is ruled by Mercury and hence the planet in 6th house is likely to afflict the results of house occupied by Mercury, Ketu or Venus. 6th house is aspected by the planets in 2nd house and the 8th house through 2nd house. In such a case if Mercury or Rahu happen to be posited in house 6 there would be no bad effects of the malefics on the house because it is the house of exaltation for both of them. Ketu is the natural significator of the affairs of the house.
It has been said above the houses 2, 6 and 8 are mutually inter-connected with each other. While attempting and modification in any of the houses including the 6th house we have to keep in view all the three houses. If 6th house is unoccupied there shall be no transfer of the afflictions of 8th and 2nd houses. There shall also be no aspect from 6th house to 12th house. The obvious result would be that the planets in 2nd and 12th houses will get extra strength. To avail of this opportunity if houses 2 and 3 are occupied by benefics it would always be helpful to awaken house No. 6. This is possible by serving the maternal uncles (helping them) or serving the daughters of the daughter. Except Sun, Jupiter and Moon all the other planets in 6th house would be offering their own results. Mercury and Ketu will not offer good results till the age of the planet in house 6 or 8. The question of the ages of planets will be dealt with at its proper place.
Although the planets in 6th house are aspected by the planets in 2nd house, but the position would be reversed in the case of Saturn who will aspect 2nd house from 6th house.