4. It is obtained by the Grace of the Master:

The ambrosia is obtained by the Master's Grace, oh Nanak, one gets release by contemplating on the Name.

By Guru’s Grace, the essence of the Lord is obtained. Oh Nanak! Imbued with the Naam, the Name of the Lord, salvation is attained.

Guru Amar Das –
Adi Granth, Asa M3, Quartets, p. 361

By Guru's Grace one gets the Divine Ambrosia; and contemplating on Him he is ferried across.

By Guru’s Grace, the sublime essence of the Lord is obtained. Meditating on the Lord, Hari, Hari, one is carried across.

Guru Ram Das –
Adi Granth, Maru M4, p. 998

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Footnote: