By 1969, Brian Wilson was already gaining the reputation as a notorious and eccentric rock & roll recluse. However, the Sunflower sessions seemed to reawaken something brilliant in his dark, troubled soul, and "This Whole World" is a prime example of this. In less that two minutes, Brian reestablished his reputation as one of the most brilliant melody writers and arrangers. With a buoyant melody and an effervescent, classy vocal arrangement, Brian wipes away three years of artistic cobwebs. Lyrically, the song is a life-affirming message of love and unity, not unlike his 1988 "Love and Mercy." In addition to the quality of the song and arrangement by Brian, the lead vocal was handed over to Carl Wilson, who turns in one of his most definitive performances. Brian later did a fine, slightly simplified remake of the song on his excellent I Just Wasn't Made for These Times soundtrack.