'I am Brahman' (Aham Brahmasmi )is only a thought.
Who says it?
Brahman himself does not say so.
What need is there for him to say it?
Nor can the real 'I' say so.
For 'I' always abides as Brahman. So it is only a thought.
Whose thought is it?
All thoughts come from the unreal 'I', that is the 'I-thought'.
Remain without thinking.
So long as there is thought, there will be fear.