Why did Alfred de Vigny leave the French military in 1827?

Alfred de Vigny left the French military in 1827 primarily because he found the profession boring. Although he had initially harbored an "inordinate love for the glory of bearing arms," his service was limited to garrison duty rather than active battlefield experience.1

During his time in the military, Vigny increasingly preferred the pursuits of a literary career. By 1827, he had already achieved success as a poet and had published his first historical novel, Cinq-Mars (1826), establishing himself as a leader of the Romantic movement in France. After taking several leaves of absence, he ultimately abandoned military life to focus on his writing.1