The Tikkun HaKlali consists of the following ten Psalms said in this order: 16, 32, 41, 42, 59, 77, 90, 105, 137, and 150. Each recital is preceded by a paragraph expressing one's desire to bind himself to the tzadikim of all generations, especially Rebbe Nachman, and several verses which are customarily recited before any saying of Psalms. The recital of the ten Psalms is followed by a prayer composed by Reb Noson, the Rebbe's foremost disciple, asking God for forgiveness from sin.
According to Rebbe Nachman, one of the greatnesses of the Psalms is that they contain the ten songs through which all of existence was created, which sustain the ten pulses in our body that give us life. (For more about the ten healing songs, read about the sixth beggar who had no hands, from Rebbe Nachman's story of “The Seven Beggars”)
He explained the great power that reading these ten Psalms has on the body and soul: “There are places so fine and narrow that no remedy has the power to penetrate them except through the General Remedy (Tikkun Haklali), which injects healing into even the narrowest, finest places. First, it is necessary to apply the General Remedy, and through this, all the individual flaws will automatically be rectified…”