It's not my wish to pour cold water... but the enlightenment
business is not that easy. The trappings just get more and more
subtle as one proceeds along.
You may have experienced a state of deep bliss/peace &
unconditional love. That's not the "high enlightenment state" that
namelessness proclaimed. Why? Because you still have the "hope" to
maintain that state, and the "fear" of not being able to maintain
the state. How is that non-duality?
Is it Longchen Rabjam or Jigme Lingpa who said this? (I can't
remember the exact words, let me just quote from my
memory...)
"Understanding is like a patch on the clothes, it will fall off in
a while. Experience is like a mist, instantaneously it is
gone."
In the enlightened state of non-dualism, there is nothing to abide
by and nothing to abandon, thus there is no need to maintain any
state.
In fact, as Dzongsar Khyentse Rinpoche said in his teaching, that
Buddhists need to get used to the idea that "enlightenment is
nothing special".
If you find in your meditation/practice that you attained
"something special", then chances are that's your mind's own
projections. 
However, it is very meritorious for you to have experienced
meditational states as such. I do not know what your path is like,
though I believe if you meet the right masters you would be able to
proceed much further.
My prayers to you. All the best.
