Your name of Koller gives you a friendly, congenial personality and causes you to desire activities involving people. Although you desire to create harmony in your associations, you can be too candid in your expression, especially if you are challenged by others. A stubborn quality within you makes it difficult for you to admit a mistake. Your name does not allow you to express your thoughts as tactfully as you would like. You relish being made a fuss of, yet you find it difficult to express your appreciation and to reciprocate with affection and words of endearment. Although you desire to create harmony with others, you can be obstinate and self-opinionated. It is sometimes difficult for you to muster the interest, initiative, and reasoning ability to concentrate and to think through complex concepts, especially in subjects that do not hold your interest, and you learn more through practical applications. As a result of your difficulty in coming to decisions, you often put off taking action until forced to do so. Also you could be affected through headaches, weak eyes, or sinus inflammation that is aggravated by stressful living conditions and eating the wrong foods. Then you can be quietly stubborn and resist taking advice.