Back in 1939, theorist Kurt Goldstein coined the term “self-actualization” to describe the motive to realize what he called “one’s full potential”.
In Goldstein’s view this drive might take the form of creative expression, pursuit of knowledge or the desire to contribute to society in some personally-defined way. Goldstein believed self-actualization was any organism’s “master motive” and its most basic drive in life. Abraham Maslow’s hierarchy of needs theory built on Goldstein’s concept and is probably the most familiar expression of it.
Among others in Christian circles, Rachel Held Evans seems to have bought into Goldstein’s theories.