Mike Pinder plays the mellotron on the track. It's been said that The Moody Blues invented "symphonic rock" with their discovery and adoption of the somewhat "cosmic" instrument. "If we hadn't discovered the mellotron, nobody else would have,"
Justin Hayward told
Q magazine in 1990. "It was a very temperamental instrument. It was always going wrong. It weighed a ton. We only had one roadie and it would take all of us to carry it into a gig. We used to sleep on it because it was the biggest thing in our transit. There used to be fights to see who would sleep on it."
the conclusion of the song echoes the maturity of the trip and mind expansion - there is no way to forget the experience. the mind has expanded, the mind matured and timothy leary's message is now fully comprehended !