All the three states are impermanent. The formless substance and witness of the three states is real and eternal. The soul is immortal. The birth, life and death are part of the waking/dream. There is neither Heaven nor Hell nor rebirth because all these are happening within the waking/dream, which is mere mirage. Thus the formless substance and witness of the mirage has to be grasped mentally.
There is no scripture, revelation, creation, prophet, priest or teacher to be revered. Only the soul can be revered. Reflecting and revering on the nature of the self is the greatest worship.
There is no distinction. Everyone is equal. Distinctions like caste, race, creed, colour, gender, nationality etc. are not needed in the pursuit of truth. There is no need for priests, places of worship, long sermons etc. "Glorifying “God-men” Swamis are denounced because there is no one required in this mental journey of reason.