Just as you can’t unlock a door without its key, without understanding the letter B it’s not possible to understand the meanings in the ‘Book’! Only when we approach the topic with the consciousness of the letter B can we truly turn to the core of the matter and reach our target.
If we take heed of what the eminent saints and enlightened ones of the past have said, the reason why the Fatiha must be begun with the Basmalah is a warning about which state one must approach the topic.
 
With the name of Allah, who is Rahman and Rahim, my being which subsists with the existence denoted by the name Allah, it is He who manifests this activity from me with His Grace…
The only absolute producer of my actions is Allah. I’m doing this action with the meanings denoted by the name Allah. It is His absolute essence (dhat), knowledge, power and wisdom that is behind my action…
 
So, live with this consciousness and do not become veiled from the reality with beliefs that go against the truth.