From what I have experienced so far, I would say most people work simply because they need to and works then become more of a habit than a motivation in life. Just like what the guide has suggested, taking a step back helps a lot in seeing the overall situation and deeply digging into the root and driving to change the outputs.

Internships are supposed to bring growth to students, and it is true. It is no more the disorientation-like feelings but replaced by the excitement of having chances to deeply explore more myself in order to take one more step towards the professional career after graduation.