The Theory of Balanceology has Meaning (M-2) as its second pillar. The other pillars being Motivation (M-1), Measurement (M-3), and Mitigation (M-4). 
I want to give some quotes from writers and thinkers I greatly respect who also detailed the importance for humans to have meaning and purpose in our life.
“This striving to find meaning in one’s life is the primary motivational force in man ……. meaning is something to discover rather than invent ……….. when a man cannot find meaning, he numbs himself with pleasure.” (Frankl, 1963)
“Deep down within us lies a relentless quest for meaning.” (McGrath, 2002)
“I then for conclude that the meaning of life is the most urgent question. How to answer it?” (Albert Camus, 1955)
