I think Nis sums up his approach here
try to feel what it means to be, just to be, without being 'this' or 'that'. All our habits go against it and the task of fighting them is long and hard sometimes, but clear understanding helps a lot. The clearer you understand that on the level of the mind you can be described in negative terms only, the quicker you will come to the end of your search and realise your limitless being.