Sitting – recognising bare attention. It lights up. (Samadhi is prajna).
Asking, who – not so much to get an answer, but to cut off the possibility of getting lost in identity with passing thoughts.
Tung- Shan says
“Just avoid seeking from others,
Or you will be estranged from yourself.
I now go on alone; I meet Him everywhere –
I am not it, but it is all of me.
One must understand this way
In order to unite with thusness”
 
The freedom of not taking thoughts – or any of the machinery of consciousness – not to be self – is the doorway to being at large.