Trying to to judge ultimate truth by holding religious or yogic doctrine as a yardstick is like trying to drain the ocean drop by drop.

Trying to  to judge  ultimate truth  by holding religious or yogic doctrine as a yardstick is like trying to drain the ocean drop by drop.   Religion and yoga is not the yardstick to judge the ultimate truth   because they based on the false self within the false experience. Whatever is based on the waking entity and practiced on the base of waking entity will not yield any fruit. 

 The waking entity or physical self or ego is false self within the false experience (waking).    The non-dual truth has to be viewed and judged without scriptures, and on the base of the soul, the innermost self.  This formless path is inner path is without the religion or scriptures or god or yoga. The formless path is pathless path is without guru and self – treading towards direct realization.

Ultimate truth is based on the soul therefore whatever practiced on the base waking entity will not yield any fruit,   because the waking entity is the false self within the false experience. The religion and yoga are based on the form therefore they are   based on the matter (form) whereas the spirituality is based on the spirit (formless).  Thus religion and yoga are not spirituality, hence there is need to bifurcate spirituality from matter (form) based religion and yoga. 

Seeker has  to grow from the inside out. None can teach him, none can make him  spiritual. There is no other guru but his  own soul.”

Self-knowledge or Atma Gnana or Brahma Gnana cannot be attained by one who is without strength or earnestness or without the receptiveness and courage to accept the truth and reject the untruth. If a serious seeker strives sincerely by means of inquiry, analysis and soul-centric reasoning, he will be able to realize it.

It is seekers  sincerity and earnestness in his  spiritual pursuit, the knowledge will start  revealing on its own.  Anyone who has humility and patience and is sincere and ready to drop their accumulated dross and receptive to accept the truth will enter non-dual Self-Awareness,  when his conviction  about the innermost self becomes firm.

Advaita refers to non- duality. Non -duality is not a theory or concept it is the nurture of the innermost self, which Atman (soul or spirit or consciousness).  Thus whatever is based on the soul is spiritual. The soul is eternal identity which has  birthless and deathless  because it is the formless.  Soul, which is in the form of consciousness, is the formless substance and witness of the illusory experience of birth, life, death and world.

The religion is based on the form. Without the form there is no question of religion. The religion accepts the concept of god, and believes the body itself as self, and injects theoretical code of conduct to live in the world, whereas in spirituality, the soul or consciousness is the true self and body, ego, world, conceptual God are part of the illusion created out of consciousness.