Relationships are the fourth cornerstone that we build the rest of our lives and experiences upon. Relationships are the most complicated and treasured aspect of the human experience.
The most complex and most fulfilling human experiences come from human relationships. After all, it is not where you go but who you go with. Consequently, once you have your health, wealth and experiences under control and serving yourself then you can find others to join you in living an optimized human experience and journeying far beyond the stars.