Below is from http://sikhismgurbani.com/
Guru Nanak Dev at the beginning of Japji poses two questions as to:
1) how one can make himself God worthy – kev saceara hoi-ai, such that the Lord can get
manifested in him – pargat ho sakay, and
2) how the barrier of koor – falsehood – created by maya and its accompaniment haumai can be
broken – kev koorai tutai paal. The guru answers these questions by saying that one should
abide by the hukam or rajaa i.e. the Will of the Lord, which has been prescribed by Him for the being.
The being comes into this world with this hukam written – lekhea naal. We, however, are completely ignorant as to where and how it is written. It is a kautak of the Lord and what little we can know about this hukam is by seeking the saran of the guru.
Kev saceara hoi-ai kev koorai tutai paal. Hukam raja-ee calna Nanak lekhea naal. P.1
ikv sicAwrw hoeIAY ikv kUVY qutY pwil Ò hukim rjweI clxw nwnk iliKAw nwil Ò
Since hukam is lekhea naal it is present in all in a hidden form as in the case of naam.
In the 25th hymn of Japji Guru Ji states that it is only by submitting to the Will of the Lord that one gains freedom – khlaasi, from the fetters – band – of maya moh. The word bhaana is often used in Gurbani to describe the hukam or Will of the Lord.
Band khlaasi bhaanai hoe. P.5
bMid KlwsI BwxY hoie Ò
In Sedh Ghost Bani Guru Ji points out that it is the Lord’s hukam which determines as to when one comes into this world – hukmay aavai, when one goes from here – hukmay jaavai, and how one lives his life – hukmay rahai sma-ee.
Hukmay aavai, hukmay jaavai, hukmay rahai sma-ee. P.940
hukmy AwvY hukmY jwvY hukmy rhY smweI Ò