Love of gemara learning

Here is a shameless effort to get comments (and learn something in the process):

Which sugya was the one that made you fall in love with gemara learning? Why?

For me, it was the chapter of keitzad mevarchin in brachot.

Because it showed me the ability of a Jew to sanctify the most mundane of human actions. More importantly, it showed me how the mind and halachic precision can be a tool for such sanctification.