Spiritual/ mental freedom is good, but to not have any conviction in anything you think is surely bad- a little structure is positive, I reckon.
Or am I taking this too literally?
And why did you use 'Burberry' pattern for the lettering? Is this some pop-culture satire? (I am aware that this is Pop art, but Pop usually celebrates pop culture, rather than criticising it, so I am confused).
Yes, you're taking it a bit too literally, this is more about self criticism, I mean, it's about not thinking that you're right all the time, or that what works for you must have to work for everybody else. Indeed some structure is positive, but you have to remember that your structure may have its flaws and that not everyone has the same kind of structure.
That's why it says Don't believe everything you think instead of Don't believe anything you think.
And although this is not exactly the official Burberry pattern, indeed tries to be similar to that one and other kindred patterns that are widely used lately. Pop Art does not necessary celebrates pop culture, Pop Art has a great sense of irony.