The end of a significant period in life is but the beginning of a relatively generic other potentially significant period of life which means that life itself is multidimensionally spiral; where each level is interwoven with others of the same spiral or other spirals through constantly evolving connections which often foreshadow the direction in which a new main or side spiral level forms.
It can individually be depicted as a DNA structure, modified to fit the "multidimensional" aspect and allow more diverse interconnections. This applied DNA image makes the above idea even more appealing. The explanation of the way your life is, of all the reason-motive-consequence chains ("multidimensional spiral" referred to above) - lies in you and in the way you are (which to a great extent is defined by your DNA).