ha ha.. thank you so much for starting this thread.
my understanding,
To reach the ultimate one.
You need to connect,
and to see how??
complete concentration on what is that, which is connecting you to the source.
Focus - connect - done. you are One now.
practically it is really really difficult to achieve this, not everyone is fortunate enough to be born with extremely pure qualities.
Gyan me if my perception needs another eye.