sensitivity to the world around him His intelligence makes him question everything Yet his awareness also becomes his greatest burden Search for Meaning Roquentin s main struggle is to find meaning in life He tries to discover it through his research on Rollebon But he soon realizes that the past cannot give life purpose He says I no longer existed in myself but in him I ate for him breathed for him He understands that living through others is false Sartre uses this to show Roquentin s inner awakening He learns that true meaning cannot come from history or from society it must be self-created Sense of Isolation Roquentin feels separated from other people He cannot share his thoughts or emotions with them He writes I am alone in the midst of these happy reasonable voices His awareness isolates him from ordinary people who live without thinking deeply He sees their happiness as blind and meaningless This loneliness makes him both tragic and heroic Sartre uses his isolation to show the cost of consciousness To see the truth one must stand apart from the crowd Vision of Existence Roquentin s greatest moment of realization comes under the chestnut tree He suddenly understands the true nature of existence He says Existence must invade you suddenly master you weigh heavily on your heart He realizes that everything simply exists without purpose This is both shocking and freeing His vision of existence gives him deep insight into life Sartre presents this moment as Roquentin s philosophical awakening He faces the truth of being and accepts it without illusion or fear Growth Toward Freedom Ultimately Roquentin becomes more peaceful and free He listens to music and says I felt my body harden and the Nausea vanish He decides to write a novel to create meaning for himself This decision marks his spiritual growth He understands that freedom is painful but necessary Through him Sartre shows that man is free to shape his own life Roquentin s story ends not in despair but in quiet strength and self-knowledge To sum up Antoine Roquentin is the living image of Sartre s existential man His loneliness sensitivity and search for meaning reflect every human being s struggle Through him Sartre explores freedom isolation and awareness Roquentin s journey from confusion to understanding makes Nausea a study of the thinking self He ends with acceptance and creative hope showing that freedom gives life its true value