Sage Goudapad:~Duality is for the unwise, non-duality and undifferentiated Reality is for the wise and difficult to grasp.+

Sage Goudapad:~Duality is for the unwise, non-duality and undifferentiated Reality is for the wise and difficult to grasp.

The essential message of Manduka Upanishad is that the whole world, that whatever is seen is only imagined. points out that even though it is harder for them, still women can attain Brahman just as men. Page 351

"From their notion": Everybody has his own imagination about facts and starts from that, instead of discarding his personal idea and looking at the fact. -Page 333. V. 83 

Manduka Upanishad shows how one opinion may be used to contradict another, so that both may be thrown away. Opinions are not for philosophy; they are as Ashtavakra says, merely thoughts; it wants the truth.

Adyatma is nothing to do with religious sects or creeds and religious beliefs or any philosophy or thinkers teaching. Adyatma is pure spirituality. Knowledge of Atma is Adyatma. Advaita is Adyatma. 

Adyatma is the knowledge of the truth beyond form, time, and space. Bifurcate religion, yoga, and theoretical philosophy and base the truth on the Athma it is Adyathma.

Adyatma is based on the ultimate truth which is based on the Atman or Spirit, which is the Self.

Sage Sankara's Advaitic wisdom is pure spirituality or Adyathma.

Remember:~

Dalai Lama said: Buddhism need not be the best religion though it is most scientific and religion and inquisitive. But Buddhism has no answer to certain questions like the existence of Atama [soul] and rebirth. Dali Lama said that as an individual he believes in rebirth as he had come across a few cases of rebirth. Modern science, Dalai Lama hoped would unearth the mystery behind the rebirth. (In DH –dec-212009-Gulbarga).

Same way all religions of the world and all the philosophies of the world are based on individuality (ego) find no answers to many questions. 

Truth seekers all over the world are trying to find answers for themselves, and they imagine and write articles and books on their ideas and others will read and blindly accept them as the ultimate truth.

There is no need to condemn anyone's’ views and ideas or writing, but without being judgmental, the seeker has to verify whether the author is speaking from the standpoint of ego, or whether he is speaking from the standpoint of Soul, the Self. If his views are based on the standpoint of the physical self (ego), then there is many doubts and confusion. If his views are based on the Soul, the innermost Self then there is no confusion and doubts of any sort.

Nothing has to be accepted without verifying the validity of any claim in the pursuit of truth. Only uncontradictable truth has to be accepted as the truth. 

There is no need to condemn any religion or any saints or gurus and yogis, but the seeker has to think beyond religion, scriptures, and personal Gods.

It is difficult to understand assimilate within a framework of some teaching or holding some philosophy as a yardstick. 

We have to drop all our accumulated dross to understand and assimilate and realize the Advaitic truth. 

I am highlighting some scriptural citations only to show the seeker that the Advaitic Sages themselves declare that scriptures, religion, and ideas of God are unimportant in pursuit of truth. 

It is easier to understand, assimilate and realize the ultimate truth or non-dualistic truth by rationalizing our views and understanding:-

There is only the mind which is present in the form of the universe. Thus, we have to investigate the universe that confronts us.

The consciousness is that which knows everything, that which sees.  Consciousness alone remains after one gets rid of all thoughts and ideas by identification with the Soul, the  Self.  Consciousness is only the seer; it is not Brahman that is an error. It becomes Brahman only after the soulcentric reasoning. : ~ Santthosh Kumaar