The human spirit is referred to in several of the assumptions of Logotherapy, but it should be noted that the use of the term spirit is not "spiritual" or "religious". In Frankl's view, the spirit is the will of the human being. The emphasis, therefore, is on the search for meaning, which is not necessarily the search for God or any other supernatural being. Frankl also noted the barriers to humanity's quest for meaning in life. He warns against "...affluence, hedonism, [and] materialism..." in the search for meaning.
Frankl cites two neurotic pathogens: hyper-intention, a forced intention toward some end which makes that end unattainable; and hyper-reflection, an excessive attention to oneself which stifles attempts to avoid the neurosis to which one thinks oneself predisposed. Frankl identified anticipatory anxiety, a fear of a given outcome which makes that outcome more likely. To relieve the anticipatory anxiety and treat the resulting neuroses, logotherapy offers paradoxical intention, wherein the patient intends to do the opposite of his hyper-intended goal.
A person, then, who fears (ie: experiences anticipatory anxiety over) not getting a good night's sleep may try too hard (that is, hyper-intend) to fall asleep, and this would hinder his ability to do so. A logotherapist would recommend, then, that he go to bed and intentionally try not to fall asleep. This would relieve the anticipatory anxiety which kept him awake in the first place, thus allowing him to fall asleep in an acceptable amount of time.