Each of you is in a continual process of unfoldment and the birth chart can put you in touch with the higher plan for your life or the bigger picture, as seen and co-created by the higher part of our being. To work creatively and positively with this wiser part of your being, you have to believe that all your lessons are being meted out by your own soul (which is intimately connected to your inner divinity).
This helps you to grow and evolve into the beautiful being you already are, deep within and know ourselves as divinity incarnated. Therefore, expanding your consciousness is one of the main purposes of astrology. It is not about fortune telling or being psychic. It is about listening and observing your inner world and all the outer events occurring in your life. You can then relate this to the birth chart and the symbolic language and story it depicts of your unfolding life.
Astrology and the symbols correctly interpreted can be a positive and is a useful guide to your higher path and enables you to see your life from a much higher perspective, than you may normally view it.