Fishing is an incredibly calming and relaxing pastime. My father and I used to paddle out on the lake and spend a whole afternoon fishing. It didn't matter if we caught a single fish, it was time where we could relax and absorb nature. When a fish gets on the line, you have to go from 0-100 and work as hard as you can to wrangle it in.
When this man saw that he had a bite, he started doing the usual. He was reeling firmly (but not too hard), and trying to get an eye on the potential catch. He was looking for a fish, but what he ends up seeing at the end of his line is something that every fisherman dreads. Luckily, he handles it quite well.