Higher truth is possible only when one is able to think beyond birth, life and death [samsara

Mundaka Upanishad says:- The rituals and the sacrifices described in the Vedas deal with lower knowledge. The sages ignored these rituals and went in search of higher knowledge. ... Such rituals are unsafe rafts for crossing The sea of samsara, of birth and death. Doomed to shipwreck are those who try to cross The sea of samsara on these poor rafts. Ignorant of their own ignorance, yet wise In their own esteem, these deluded men Proud of their vain learning go round and round Like the blind led by the blind.

Ultimate truth  or Brahman is possible only when one is able to think beyond birth, life and death (samsara or world). The one who indulges in rituals and scarifies will remain immersed believing the duality (birth, life and death and the world). Thus, the religious rituals and concepts are not the means to go beyond duality (samsara). Therefore, the seeking mind has to ignore the religion, concept of god and scriptures to go beyond duality.

Religious truth is individual “Truth”; spirituality is “ultimate Truth.” This means religionists takes his feeling and sentiments of truth whereas the truth seekers take his reasoned judgment, which will be the same under test everywhere in the world. “Belief system place God as the unknown reality.” Every belief has a different idea of God. 

Every man has a different idea of real. Hence there is a need for definition before study.The fallacy of religious believers appeal to scripture lies in the varying and conflicting interpretations of the same scripture which different persons feel entitled to give or hold.

Theological thinkers say God is a perfect being, but they have never known God, never proved his existence; hence their ascription of perfection to Him is purely self-imagined. If one has to test truth in the next world only, then there is no proof of the existence of the next world, other than it is mentioned in the doctrines. The doctrines truth is not ultimate truth. Scriptures are being added to from time to time. This process will go on. There is the final authority among them? One contradicts the other: duality reigns supreme.

Suppose one sees God. How is he to know that He is God? His mere statement is not enough. He must have proof; He must show that He is God. 

It is impossible to prove the existence of God by any reasoning: one can only say "I believe. Belief is not truth. “The most rational position is that: "I do not know." Every religion has its own idea of the god, the paradise, heaven, sin and karma. But where people have got a little thinking capacity, they begin to disbelieve through the contradictions of various contending orthodox claims and descriptions. 

Unless one gives up the ideas of the idea of god, heaven and hell, it is impossible assimilate Nondualistic or Advaitic truth. Truth must be proved here and now, on this world, in this very life. Not in next world and next life. The idea, as the existence of personal God heaven, hell and sin and karma are mere imagination based on the false self (waking entity) within the false experience (waking). When waking experience itself is false then whatever one sees, knows, believe and experiences are bound to be falsehood.