Sade Sati is a 7½ year long Dasha (the astrological position in our birth chart) of the planet Saturn ruled by lord Shani Dev. Lord Shani is referred as the God of justice and admirer of truth and hard work. He is termed as the balancer of good deeds and bad deeds and often punish the people accordingly. He teaches lessons to the people so that they follow a noble path and work hard in life. It is believed that lord Shani (Saturn) can change the fortunes of the people by turning a rich into the poor and vice-versa. Hence the Sade Sati Dasha brings along a phase of extreme hardships wherein the person/family suffers from a lot of financial, physical, emotional and social losses as per his Karma.