I have a question.

As the view of Brahman becomes clearer, does it get less articulative? How and when does the “i” dissolves into or merge with Brahman ?

Reply:  I am not certain about the view of Brahman becoming less articulate. I would say the inner stillness comes to the forefront. But on the surface, various life conditions and situations may apply. 

As to the rest of your question: “How and when does the “i” dissolves into or merge with Brahman ?”
~~ vía your love 💗 of truth, your perseverance and via gods grace, the Self is revealed. 
You know it is so when, as my teacher Francis Lucille says: when you are happy 99.9% of the time. 
Atmananda Menon said: ” you know you are established when you are no longer affected by any thought, perception or sensation.”