Seeing one's head tremble signifies attaining honor and dignity from one's superior or leader.
Seeing the right hand tremble signifies difficulty and hardship in livelihood and life.
Seeing the hips tremble signifies goodness that will come from relatives.
Seeing the calf tremble signifies being honored in proportion to one's wealth and property.
Seeing the chest tremble signifies hearing words one dislikes and finds repugnant.
Ja'far al-Sadiq said that trembling is interpreted in five ways: a change of condition, the occurrence of weakness, fear and anxiety, sorrow and grief, and loss and damage. Trembling so that one's hair stands on end signifies fear of Allah Most High.