I have a similar endorphin experience with this song. I’ve seen Pearl Jam too many times and they usually play this song in the middle of the set pre-encore portion (the band is known for 3+ hour, 30+ song, two encore sets). By the time the show is over you are just dead tired from probably drinking all day and being in the moment for three hours. Your brain is mush. Legs goo. Mind just going “evenflooo thosarunn lie budderfly oheeedonooo” thinking about how many songs were from Even Flow until the end of the show.