The ultimate goal of life is to develop love of God and return to the spiritual world. The Bhagavad-gita (8.5-7) teaches that one should remember the Supreme at the time of death, and (8.28) states that one who practices devotional service attains the highest goal. The Bhagavad-gita (18.65-66) declares that the Supreme will protect one who surrenders to Him. This is achieved through devotional service performed under the guidance of a spiritual master. Perfect Questions Perfect Answers (Chapter 3) teaches that success is guaranteed for one who practices sincerely.