In 📙 After Virtue, this question is most clearly presented in the discussion of Kierkegaard's book Either/Or, which sketches two opposite attitudes to life, labelled the Aesthetic and the Ethical.
This restlessness kind of feels like an intense inner conflict between the Aesthetic and the Ethical, or in the terms of 📝 Life as Adventure Game a conflict between the Horizontal and the Vertical, which then is like a tension between Phenomenology and Teleology.
It may be that his focus depends on the stern fatherly attunement provided by his veteran friend Walter, whose pathological devotion to the Ethical manifests in hilarious obsession with the Sabbath, bowling tournament rules, and revenge. Nevertheless, the Dude abides and keeps his mind limber with a "strict drug regimen" to pursue the "very complicated case." And he seems to enjoy it all.