While listening to the lecture, many things I had seen in Spring came up, such as the parts where Yeonghan-nim mentioned using technologies like reflection in the JPA class. This helped me review and understand well the parts where I had wondered "Why do I have to do it this way?" or "How does it work this way?". I really learned a lot in this lecture as well. While studying steadily and looking up things I didn't know, the parts learned in this lecture seem to have carefully filled in the gaps in between. If I review Spring again, I think I'll be able to use it even better! Thank you for the great lecture!!