Lao Tzu's famous poetic Tao Te Ching starts with the words "A way that can be walked is not The Way."
Realize that it has nothing to do with the intellect or scientific proof, but that of firsthand experiential verification.
Realize that to truly know, rather than knowing ABOUT, involves BEING that which is to be known.
Realize that the truth doesn't need the approval of the human ego in order to be truth. Absolute Truth already is what it is. It can't be created by the mind.
Realize that because of karma and Free Will, EVERYTHING is perfect as it is, despite all the prevalent negativities in the world.
Realize that everyone is simply being the level of "truth" that they are currently aware of, and that the truth is only for those who want it.
Realize that people can't help being that which they are. "Forgive them, for they know not what they do."
In The Words of Gandhi, "You must be the change you wish to see in the world", and "..lose yourself in the service of others".
Realize that because everybody and everything is One, we change the world in far greater unseen ways as a result of what we ARE, compared to what we do.
Realize that separation, duality, polarity and opposites do not actually exist. All is One, which is Self, which just Is.
Realize that there is no duality of "love" and "evil". There are only varying degrees of the absence of Love/Truth.
Realize that space, distance, form, and time are ILLUSIONS created by LIMITED physical senses and ways of thinking.
Realize that the physical body, and the AUTOMATIC random repetitive thoughts of the mind, are not the real "me" at all.
Realize that you are the Awareness that is aware of the mind and its comings and goings. The more it's watched, the more it disappears.
Realize that everything and everyone is One. The observer and the observed are One. The knower and the known are One.
A Course in Miracles says "...you both HAVE everything and ARE everything."
Realize that there is no duality, no opposites, and no polarity. Nothing can exist outside of Existence, otherwise it wouldn't exist.
Realize that even what the mind conceives and conceptualizes as being "nothing", Void, Unmanifest, or Formlessness, is still within Existence.
In the highly evolved The Zen Teaching of Huang Po on the
Transmission of Mind, it says "It is an existence which is no existence, a non-existence which is nevertheless existence. So this true Void does in some marvelous way 'exist'."
Realize that there can only be varying degrees of things within Existence, like degrees on a thermometer.
Realize that there is no individuality; no "you", "me", "this", "that", "here", "there", "inner", "outer", etc.
Realize that there is no individual "me", "myself", "mine", or "I".
Realize that there is no "doer" doing anything, because that would imply there is an "individual" to do something.
Realize that since All is One, there can be no "other", which means All is Self, or All is I.
Realize that Enlightenment happens by ITSELF when the little self is left to fall away like a disrobed peice of clothing.
Realize that there is absolutely NOTHING to be gotten, grasped, gained, obtained, or attained because The Absolute/Self/Buddha/God already Is.
Realize that Awareness, Consciousness, and Knowing don't require words, concepts, thoughts or thinking.
Realize that EVERYTHING is an irrelevant concept. All thought and thinking is essentially worthless.
It's really just as "simple" as losing interest in all thought and thinking, right now, and not identifying thoughts as "me", right now.
Realize that without the ego/mind interfering, everything just IS. Nothing more, nothing less. All perceptions, views, opinions, beliefs, likes, and dislikes are irrelevant.
Realize that The Absolute is not subject to change, and even "Is" is an irrelevant concept.
Realize all of this... but not with words and concepts. Just let go.
Ramana Maharshi says that "There will come a time when one will have to forget all that has been learned." and Nisargadatta Maharaj explains that "When you demand nothing of the world, nor of God, when you want nothing, seek nothing, expect nothing, then the Supreme State will come to you uninvited and unexpected."