Why did Aeolus let the west wind out?

Aeolus released the west wind, also known as Zephyr, to assist Odysseus and his crew on their journey home in Homer's "Odyssey." Aeolus, the god of winds, provided the winds as a favor, hoping to help them sail smoothly. However, the crew's subsequent mishap, when they opened the bag containing the winds out of curiOSity, caused them to be blown off course, ultimately leading to more trials on their journey.