Honestly, I don't know. I will look into the matter and see if some answers comes up. Bear in mind I was talking about regular Sikhs. Not the Gurus themselves. Even if there was a fire, it wouldn't have been Vedic in any sense.
Well the difference is in what is meant and being suggested. To them "fire" means the whole Vedic shebang and a return to it. One can equally call out practises from Vedic times which are now obsolete and say "lets return to them!" right back to these groups.
It's not hard to concieve in reality that certain things remained similar but the intention of disucssing the matter is important.
In the case of weddings, there is very little information. Guru Sahib rejected the janeu for example, to which there is a Sakhi and Bani attached. But it is not until Guru Ramdas Ji that Sikhs get their own ceremony, and again I will repeat I was deducing with regards to the use of fire. Lots of ambiguity. Maybe the couple did just stay sitting or standing whilst Laavan were read by Sangat, maybe not.
As for Sikhs such as my great-grandparents, that was just a matter of circumstance. One cannot use that argument to promote a return to Vedic style weddings.
Yes I'm aware that within Hindu weddings it is indeed Agni Devta. But we are talking about Namdharis, and from what I have seen, there is no invocation from Rig Ved - that's what I'm saying, we assume that the fire present in a Kooka wedding is considered as Agni Devta when in actual fact to me, it seems as though it's....just a fire. Which really has no particular meaning per se; just a continuation of one aspect of the ceremony. They read Suhi Mahalla 4.
A fire is only Agni "Devta" if one believes and invokes.
I have a english pdf of Rig veda , the oldest scripture of Hinduism, the oldest of the 4 vedas , and perhaps the most revered .
It starts with a hymn praising Agni and asks it to reside over the 'straw and fodder' of the havan.
HYMN I. Agni.
1 I Laud Agni, the chosen Priest, God, minister of sacrifice,
The hotar, lavishest of wealth.
2 Worthy is Agni to be praised by living as by ancient seers.
He shall bring hitherward the Gods.
Looking at the index of the scripture , I am surprised , Agni is like everywhere in it almost. So , yes the marriage rites are basically asking Agni devta . "Agni devta" is the main witness of hindu marriage .
A hymn in another mandal says
HYMN LIX. Agni. 1 THE other fires are, verily, thy branches; the Immortals all rejoice in thee, O Agni
So , I think Agni may not be the "fire" as in flames, but rather the heat energy pervading the universe, be it in form of fire energy, metabolic heat in body, nuclear heat inside sun, power plants, etc or the latent fuel inside wood , etc. It basically refers to the "heat" form of god . I could be wrong though. and I don't think I have enough time to go through the vast expanse of the text .
So during marriages of 4th guru onwards , they married by fire ? and that includes Guru Gobind singhji as well ?
I am genuinely curious because of the many claims made by RSS about "reminding sikhs of their past" , this is also one that one commonly encounters, that ancient sikhs and gurus married by fire and that it wasn't until those evil pesky britishers who drove a wedge between hindus and sikhs and voila Anand karajs started
Whats the meaning of 'laav ' ? perhaps it could mean something altogether then ?
Anyways , regardless , I would reckon Hinduism have had far, far more changes to it considering its almost 10 times older than sikhism is (500 vs 5000 !) . Hinduism is so old infact, that rig vedic deities like Indra, Asvins , Maruts, etc are not even heard of today , let alone worshipped
Sikhi is more pristine in comparison in the turmoils of time.