The rush of studying medicine, or any science that takes more than one course, is those moments when information from one area, time or place "merges" with information from another area, time or place and becomes the consummate OMG moment.
It happens with increasing regularity for me as I merge 25 years of education, knowledge, information and experience together in this doctorate experience. I realize that the more I learn, the more I am able to see. The more I am able to see, the more different patterns of doing something becomes evident.