As it saw in the Self all Godly attributes, it saw in Gods the truth and powers of the Self; indeed, it taught that one who worships a God as other t… - Ram Swarup

It is indeed a strange sect of Islam which claims for itself a founder other than Muhammad and a scripture other than the Quran, and which does not mention the name of the Prophet even once in its scripture quite considerable in length.

It prescribes five daily sacrifices, pancha mahayajnas... The first yajna is Self-knowledge and self-study.. This is called bhrama-yajna... Daily reading of scriptures is its external aspect. The second yajna is pitri-yajna, offerting to one's ancestors... The third is deva-yajna, offering to Gods.... Deva-yajna is in reality an offering to our own higher nature, the secret Godhead within us. The fourth is bhutna-yajna, offering made to elements and all creatures... The last offering is called nri-yajna, which is an offering to men... (p. 242 ff)

These similarities were not accidental caused by a “Hindu environment”, as some post-Macauliffe Akali scholars try to explain. They arose because the Sikh Gurus were Hindus; they were brought up and nourished on Hindu scriptures; they were shaped by the Santtradition of their day which derived from the Upanishads and the Yogas and Sikh Gurus were Vaishnavas who remembered their God by the name of Hari or Rama or Govinda.Nanak alone used the word “Hari’ 630 times; in the Adi Granth, it occurs 8,300 times. Similarly, the word ‘Rama’ appears 2,500 times. Whether one understands these names in their more popular and Pauranik sense or in their more Upanishadic and Yogic meaning, in either case there is no escape from the traditional identity.