2. Buddhism's attitude towards life is to let nature take its course. Run if you want. Life lies in exercise, and running can keep fit.
Living in the present is the most important thing. I think you have something on your mind, so you will think about it and even hear voices. If you think there is reincarnation, you killed too many people in your last life, and you will do more good deeds in this life. Buddhism stresses cause and effect, and if good causes are planted, there will be good results.