Not that there's a literal connection to the Dude way of life with this song, but I take it as being about living in the now. Also, I feel like its about seizing the moment for whatever purpose or experience that strikes your fancy at the time... Pretty cool song in my opinion:
https://www.youtube.com/watch?v=zpY0miZMEx4 (https://www.youtube.com/watch?v=zpY0miZMEx4)
In the words of a great dude who is now in the great dudely beyond;
"The purpose of life is to live it."
- Chuck. AKA, cckeiser dude