I
Thought is personified as an entity that attempts but fails to convey the soul.
II
Thought is personified as attempting to make sense of life, but ultimately finding nothing.
III
The speaker's conjectures and ideas about future readers and the nature of existence drive his existential crisis.
V
Thought is personified as something the speaker struggles to direct toward action.
VII
Thought is personified as something that may be nulled by death, and later as 'idle thought' that may dismay less idle thoughts.
VIII
Thought is personified as an agent that attempts to unmask the soul but itself remains masked.
Chapter X
The heart is personified as a child-like entity that is lulled to sleep by the speaker's words, indifferent to their literal meaning.
XII
The speaker's own thought, which turns upon the world in search of meaning.
XIV
Personified as the faculty that grasps the scattered smallnesses of stars and strays in contemplation.
XV
The speaker's own thought of others' thought of him, which shapes his daily experience.
XVI
Personified as an entity that, through reflection, undermines the solid reality of joy.
Chapter XVII
Personified as a faculty that can bear the fruit of doubt and question reality.
Chapter XVIII
Thought is described as a high-walled maze, troubling the owner with lost strings and forgotten plans.
Chapter XX
Referenced as 'Thought' from which vague memories emerge like 'unseen bulks of vagueness'.
Chapter XXI
Personified as blind yet capable of understanding sight and reality beyond physical touch.
XXII
The faculty of memory and introspection that fails to grasp the soul's meaning.
Chapter XXIV
The speaker's Thought is the medium through which this primordial past is dragged.
Chapter XXVI: The Limits of Knowledge
Personified as a force that clouds life's day-sense with strangeness and yields only the sense of words, not true knowledge.
Chapter XXIX
Mentioned as having its 'active inaction' dulled by the monotony of existence.
XXXI
Implicitly present as 'Consciousness' and the 'daylight thoughts' through which yearnings escape.
XXXII
Thoughts are personified as messengers that come to explain but vanish, leaving the explanation itself unexplained.
XXXIII
Personified as the faculty that confers being on nothing and finds truth through negation.
Antinous
Implied in Hadrian's mental processes and the 'thought' that Antinous is already a god.
XIII
The 'thought whole' is described as having no meaning, lying spilt by Time's wall.
Epithalamium
Personified as an entity that 'shrink[s]' and 'mar[s]' hopes, and later as 'thought's self' that frets and troubles after repeated coupling.
II
The bride's own thoughts shrink and become unready as she anticipates the bridegroom's hands.