Your name of Sina gives you a strong urge for independence. When you are required to express yourself in personal matters requiring finesse and diplomacy, you feel awkward and embarrassed. Nothing intimidates you once you make up your mind. You have known misunderstandings and a tendency to jealousy and moods of depression. In conversation, you prefer to use as few words as possible and often choose silence rather than idle chatter. You can express your deeper thoughts and feelings best through writing. Yet, when they get to know you, they realize you are loyal in friendships and would go to any length to help someone in need. Under circumstances when others are expressive, you feel inferior because of your inability to communicate your deeper thoughts and feelings. There is originality and depth of thought contained in this name, particularly along practical and mathematical lines. You find satisfaction in being outdoors or in getting out into nature, or in dealing with the products of the earth.