Let the top 10 begin...
10. Mission (from the 1987 album Hold Your Fire)
What an amazing tune. This is another tune that wowed me from the start and was integral during my discovery phase as a Rush diehard. The whole song is great, but the last two minutes in particular is out of this world great, and I still want to smack them a little for fading out the song during Alex's awesome solo. Fortunately, the live version (link below) always saw the band bring the song to its true and glorious ending.
"It's cold comfort
To the ones without it
To know how they struggled
How they suffered about it
If their lives were exotic and strange
They would likely have gladly exchanged them
For something a little more plain
Maybe something a little more sane
We each pay a fabulous price
For our visions of paradise
But a spirit with a vision
Is a dream with a mission"
https://www.youtube.com/watch?v=mNn3zI2bCHw