What does the literature say about how a person identifies his/her life purpose?

Major Project – Life Purpose
Document in detail your Life Purpose Discovery Process. Use each item below as a section title. You can add as many headings and subheadings as you need. If you include pictures, graphs, or tables, they will not count toward your page count.
Explain what is meant by Life Purpose. What does the literature say about how a person identifies his/her life purpose?
1.) literature from Christian authors only or
2.) from a variety of religions and non-religions option 2 must also discuss life purpose from a Christian perspective.