Depression is the inability to construct a future.
Rollo May (1909-1994), American existential psychologist. “Love and Will”, ch. 9 (1969). (via Wikiquote)
Depression distorts time and thought. Depression raises mountains out of the flat plains and transmutes the familiar into the frightening. Depression saps and drains, extracting a psychic tax for the most commonplace actions and thoughts — like feigning wellbeing. Depression lies.