When I’m feeling sad; when I’m feeling blue
I always know that I can turn to you
Your familiar words, they put me at ease
Washing over me like a gentle breeze
When everything’s crazy, you never change
No matter what happens, you stay the same
That’s why I come back, again and again
Because the best books never really end
The poet uses comparison and contrast to present the poem. What MAIN comparison is the poet making?