I have read this thread with great interest and on my initial reading I also thought that the 'pool of nectar' one bathes in may be much less a bath (or shower) and much more the awareness of Waheguru.
However I was a bit cowardly and not being a Sikh or of great knowledge concerning Gurbani I kept silent.
My very basic understanding is that the name of God (awareness of God ) is Amrit
The Name of God is 'nectar', that is the base for all.
(Guru Granth Sahib Ji, p. 1429).
Name is the treasure of nectar, join and drink O! Brother
Remembering whom we get all happiness, and quench our thirst.
(Guru Granth Sahib Ji, p. 318)
O! God your word is all nectar.
By listening to it, I am emancipated.
(Guru Granth Sahib Ji, p. 103)
To achieve this Amrit, one has to churn it by repeating His name with
one's tongue (mouth)repeatedly:
One's tongue should meditate upon His Name
And this churning will giant one Amrit.
(Guru Granth Sahib Ji, p. 728)
The hour when we repeat His Name and ponder upon His
Excellences is the moment of achieving Amrit:
(Guru Granth Sahib Ji, p. 2)
Singing the praise of God with one's tongue is(drinking) Amrit.
(Guru Granth Sahib Ji, p.1219)
I see only One, none else.
By the grace of Guru I drink nectar.
(Guru Granth Sahib Ji, p. 113)
For the treasure of water (nectar), you have come to this world,
That nectar is with Guru, O! Lovable.
(Guru Granth Sahib Ji, p. 598)
These would indicate to me that Amrit is realisation or awareness of God. Not a bath or Shower.
(any mistakes I have made in relation to the Sikhi way or the Guru Granth Sahib Ji are my own and not a reflection on these)
With regards.