Throughout Sikh historical texts there is mention of the Guru Gobind Singh ji visiting the mountain Nainadevi and having Chandi Maa appear after months of a Havan [worship with fire]. This topic is a key issue to understand because it puts into context passages within Dasam Sri Guru Granth Sahib Ji along with Puratan Khalsa traditions which seem out of place in the contemporary Sikh mindset.
Above: A Sikh pilgrim at Sri Nainadevi Mandir making an offering to at the historic Havan which still continues today.
Giani Baba Inderjit Singh Ji briefly describes a short portion of the whole Nainadevi sakhi to everyday Sangat in Gurdrawa Scarborough in 2011.
Before automatically denying the event at Nainadevi, one should ponder of the words of Sri Guru Gobind Singh Ji:
ਸਰਬ ਕਾਲ ਹੈ ਪਿਤਾ ਅਪਾਰਾ ॥ ਦੇਬਿ ਕਾਲਿਕਾ ਮਾਤ ਹਮਾਰਾ ॥
Dasam Sri Guru Granth Sahib, Bachitar Natak