The way of worship is not important as long as one is aware of the inner purpose of rituals and activities he performs and recognizes the supreme power behind the idols and he worships.
There are not two minds, one good and the other evil. It is only the vasanas or tendies of the mind that are of two kinds, good and favourable, evil and unfavourable.
When the mind is associated with the former it is good; and when associated with the latter it is called evil.
Bhagavan Sri Ramana
You, as a body,mind,or soul, area dream, but what you really are, is Existence, Knowledge, and Bliss
YOU ARE THE GOD OF THIS UNIVERSE.
From this day onwards, you must win over everyone through love and compassion.
Nara (man) falls into Naraka (hell), through over-indulgence.Senses generally run wild and like raging floods,spell destruction.
The festival of Deepavali is to express gratitide at the defeat of the demonic (Naraka) tendencies in human, which drag them down from Divinity.
Sri Sathya Sai
It is only when 'Adi Purusha'(Vishnu) declares a war, seated on his vehicle 'Garuda' (Eagle) with its mighty wings, symbolising devotion and discrimination, can 'Narakasura' (Mean and Wicked tendencies) be eliminated, resulting in 'Eternal life' and 'Enlightenment' in individuals life.
With this enlightenment the evolution of an individual comes a full circle and he becomes Poorna (full).