SAT is the NAAM

Ik onkar sat Naam Sat gurparsaad param jyot puran prakash Dhan Dhan sat parbrahm pita parmesar bless all.

Satnaam is actually two separate words.   
"kirtam Naam jihba teree Katha, sat Naam tera pura purbla.  

PRAISE  Naams (names) are describing you with my tongue,
but SAT Naam, the name SAT,
is your original name."   

Guru Arjun Dev Ji

Baba ji said SAT/TRUTH is the name of the light, (prabh jot prabh naam), is pure God,   but Naam is just part of the shadow, just describes that SAT is the Naam.  

No one can do simran.  No one can get up early and sit for long hours. No one can  go go into samadhi and merge into  the light unless God himself makes us do his simran.   And if we find someone who has been blessed like that, then fall at their feet so we too may be blessed.

"Se simreh jin aap simrahi.
Nanak ta kau lago paai."

.. Dhan Guru Arjun Dev ji.