Saturn is a factor of justice and is honest, so in such a case the conjunction of Moon and Saturn makes the person emotional and honest to a great extent, but in predictions, this conjunction is known as Vish Yoga. Saturn is a sinful planet and the Moon is an emotional planet. If there is even a slight sinful effect on the Moon then an unknown fear comes in the mind of the person. They are afraid in their mind. They are unable to make a decision. The conjunction of Moon and Saturn gives an unknown fear to the person, they might go mad if any other sinful planet comes in the conjunction. If both Moon, Rahu, and Saturn are with them and there is no other planet before or behind them then the mind of the person becomes very fickle in their Dasha or Antardasha, and they can take some wrong steps.