My daughter who is 20 is going thru Rahu dasa since 2006 and sade sati too. Her star is Hastam (Kanya). Rahu in her natal chart is badly positioned. So she is going thru a very trying time healthwise and mentally. Rahu is as bad as Sani if not worse. And to go thru this period at such a young age when you should be strong enough to make your life's decision is the worst Karma anyone can have. As a mother, I have tried everything - temple visits, rudraksha, prayers, EVERYTHING! Believe me nothing REALLY helps. Sometimes you feel they help, but again you will be pushed back 100 steps. I have learned that there is NO respite from karma. One has to pay the price for past deeds. As a mother, I am in a lot of mental stress which is affecting my health as well. But that is my Karma! I don't want to raise the hopes of anyone...but praying to God during such difficult times is like holding an umbrella in the rain. It wont shield you if the wind blows. With a bad dasa like Rahu, the wind blows all the time! So no God can really help! I am sorry to sound pessimistic, but this is out of my personal experience.