The personal letters of Vincent van Gogh provide deep insights into his artistic process, emotional struggles, and relationships. These correspondences frequently reveal his passion for art and desire for connection, particularly with his brother Theo. Van Gogh's reflections on his mental health and existential thoughts offer a vulnerable perspective that enhances understanding of his artwork, illuminating the connection between his personal experiences and creative expression. Through his letters, readers gain access to the profound emotional complexity of the artist, enriching the appreciation of his iconic pieces.