Shani takes complete 30 years to take a round of the zodiac. Thus, it remains for two and a half years over each sign. When Shani transits over the fourth or the eighth house from natal moon, it is called 'Dhaiya'. In the 'Dhaiya' of Shani, its impact on our life increases and the malefic position causes to increase malefic effects. The benefic effects of moon are turned down and are gone useless. Thus, the native gets surrounded by the problems and the troubles. In this period Saturn may put you under financial and personal stress, create frequent obstacles and stop you from achieving success easily. Saturn will challenge you and if you do not rise up to the challenge then you may face failure.