Final answer:
The Rubaiyat qualifies as didactic literature as it educates readers about the joy and fleeting nature of life. Khayyam uses drinking imagery and expresses a disdain for formal education to convey his message.
Step-by-step explanation:
The Rubaiyat qualifies as didactic literature because it serves to educate and instruct readers. The poet, Khayyam, uses imagery related to drinking to convey the fleeting nature of life and to teach readers about the joy and preciousness of life experience. Through his disdain for the teachings of sages and scholars, Khayyam emphasizes the importance of personal experience over formal education.