From the book "Naam or Word", written by Sant Kirpal Singh

The real essence of Naam is all-pervading in each indi­vidual and is yet hidden and unfelt. It can be made mani­fest through the grace of a Master-soul who is established in the Naam, or in other words is Naam-personified and capable of transmitting to others his own life-impulse.

In the present age, the Unmanifested Naam reigns supreme,
and is surging in abundance in each individual,
It however, becomes manifest in such hearts
as take refuge at the lotus feet of a Master-soul.
GURU AMAR DAS

In this world, one can have each and every thing one may desire; but the Unmanifested Word is too difficult to be achieved. It is the heritage of one who is a Gurmukh or established in the Master-soul.

Hari Naam is a very rare commodity,
It may grow in the heart of some Guru-man.

The whole world is devoid of Naam,
Yet it may be obtained from a Guru-man.
GURU AMAR DAS