Everything is the Supreme Being, which is Existence – consciousness - bliss, and ‘I am That’. By constantly cultivating this pure thought, get rid of impure thoughts. Then discarding even that thought and always inhering in the state of fullness, you will become the non-dual and undifferentiated Supreme Being and attain liberation.
So whatever you wish that others would do to you, do also to them, for this is the Law and the Prophets.
This is peace, this is excellent, namely the calm of all impulses, the casting out of all “basis”, the extinction of craving, dispassion, stopping-nirvana.
One who serves and seeks no recompense finds union with the Lord. Such a servant alone takes the Master’s guidance, says Nanak, As on him is divine grace.
A pure devotee’s heart is always filled with ideas about executing the Lord’s service, which is bestowed upon the pure devotee through the transparent medium of the spiritual master.
Ignorance is the failure to discriminate between permanent and impermanent, pure and impure, bliss and suffering, Self and non-Self.

