Hello Toby. I was so moved by the lecture that I am leaving a review. From the beginning, I was so moved by the fact that it seemed like the lecturer was really trying to help developers. It was so amazing that I wondered if there was a lecture like this. I am still listening to the beginning of the lecture, but this lecture really makes me look forward to the next part. While using Spring, I tried to learn only the functionality, but I didn't know the background of Spring or how it works internally. This lecture really scratched my itchy spot. It was an opportunity for me to look back on myself, who had only focused on the functions of Spring that were visible on the outside. Thank you for the great lecture and I hope you stay healthy. I will wait for the next lecture. Have a good day today.