The very simple and single purpose of life alive! Dust as Dirt was among the animals. In fact, Dust as Dirt was still part animal, perhaps mixed with some vegetables and even some fruits and nuts. The purpose of life was to separate the animal from man. Life was now the human mind. Life was consciousness, but life used conscious through man to sin or to change or to even break the unwritten law, although heard from above.
By sin, it is meant to give wrong information or to pretend to know or imitate when not. In other words, the human conscious mind was used for bodily or for animal pleasures and not for spiritual pleasures; and therefore, separating the man from creation or from the spiritual, which is adoption. That is, separating the conscious mind, which was life, from the brain, which is really creation or adoption through understanding.
Thus, the purpose of life alive is to know creation and once creation is known, creation has been adopted and thus making creation now a new creation.