Final answer:
Juliet is motivated to drink the poison by her vision of a life without Romeo.
Step-by-step explanation:
Juliet's motivation to drink the poison is driven by her vision of a life without Romeo. She believes that without him, life would be meaningless and she would rather be dead than live without him. This tragic devotion to love is a central theme in Romeo and Juliet and ultimately leads to their untimely deaths.