This is a motivational message to encourage people to think more deeply and critically. It encourages people to challenge their own beliefs and assumptions, to think outside the box, and to come up with creative solutions to problems. It also encourages people to seek out new ideas and perspectives, and to be open
From Wikipedia
"Don't Think Twice, It's All Right" is a song written by Bob Dylan in 1962 and released the following year on his second studio album The Freewheelin' Bob Dylan and as the B-side of the single "Blowin' in the Wind". The song has been covered by many other artists, most notably by Peter, Paul and Mary who released it as a single reaching the Top 10 of the Billboard Hot 100.