“Before enlightenment, mountains are mountains and waters are waters;
after a first glimpse into the truth, mountains are no longer
mountains and waters are no longer waters;
after enlightenment, mountains are once again mountains and waters once again waters.”
— Zen saying

First you see duality
Then you see non-duality
Then finally you look at and see duality with the depth and clarity of non-duality which is to say not two-not one and not not two not not one either. Just as it is. Free of projection. Free of/less and less ntainted by “me”a.k.a. free of "as *I* want to see".

saṃsāra is saṃsāra. nirvāṇa is nirvāṇa. saṃsāra is not nirvāṇa. nirvāṇa is not saṃsāra.
saṃsāra is not necessarily saṃsāra, nirvana is not necessarily nirvāṇa.
saṃsāra is nirvāṇa, nirvāṇa is saṃsāra, but also saṃsāra is saṃsāra, nirvāṇa is nirvāṇa.

Going through is going out. Trying to go out is going in (a.k.a. entering deeper delusion of (compulsive) Thought by way of identification).
Going through is not necessarily always going out. Going out can actually be going out.
All depends on degree of clarity of sight and truthfulness.
End of becoming/not becoming. End of “me" and its many torments.
To do without doing. Move without moving.
No need to cling to passing thoughts even as one seems to enter them and as they move through us.

All this to say no point in confusing one thing for another even as the other thing is just an effect of THAT.
To just see things.. as they are.. without the deceptions of mind.

(Please note that everytime I seem to be critiquing Thought, I am just referring to you/anyone being used/deceived by it and not the You /You using Thought).
All the spiritual texts are clear. And simple. There are no riddles anywhere (if we are perceiving riddles-sensemaking-projecting, it means we are still seeking something somewhere "there" a.k.a. mind enmeshed in senses, which is okay but best to be honest and clear about it to get past the whole clinginess to a certain person-al idea of seeking which is often just you letting the mind trick you. The whole idea of riddle is a projection/lack of seeing clearly. All that there is is That but allow me to be very clear and say again that when I say this I am not referring to the ideas that mind projects as a part of its habitual tendency to make sense mixed with accumulated memory/knowledge owing to extroversion of Mind/enmeshment with the senses.).. 
That is if you are willing to abandon the notion that it has necessarily got to be a strugglesome path/some kind of roundabout way to "here" (which is also an idea well because never not been here/That).
So far as sādhanā (spiritual practice) is concerned it can and often should continue all the time and through it all even as we have dedicated hours for it, and yet one can just drop it regardless of what the seeming of body-mind is doing (and before the monkey mind rushes to make assumptions, you should know that nothing foolish/the reader might or might not like to hear is being implied or said here.).
Avoid mixing up non-dual awareness/realisation with person-al/conditioned intellectual confusions that come to fragment view, the mind is continually a deceiver.
Consider the possibility that maybe just maybe it is simple indeed.
The "drop it" is implied in the sense of mind of course a.k.a. see/let it move through, don't cling.
To see things as they are means to really see things as they are.
Dhyāna is our best friend to move past the deep debris of all conditioning and see things as they are.
Being okay with death (both egoic and physical, that is, if we must separate the two for granularity) is what it takes to be secure exactly where you are.
Physical death is feared because the extroverted mind sees and feels the persisting (sense of the) body, identifies with it, and takes it for "I". The illusion runs so deep and strong that you go around exploding angrily on anyone who asks you to shut the fuck up and meditate traditionally with discipline and see for yourself of course because somebody is challenging your current view which says and validates that you are very much the mind-body or more technically the thought-sensation all of which has been strengthened over time through deep emotional investment in the view.
This is the egoic death part and the ego/sense of "I" resists this because it means falling and standing on no ground (a.k.a. not fixating) which it doesn't trust itself with, but well that's where things get interesting.. when "you" take the perceived blow and assault and just stop and see what happens. Was there ever anyone born who could die? find out. It's the most adventurous thing you could do. Nothing compares. And I am still describing the pure bliss of Nothing part (or more accurately experience of Non-Experience) in a very understated way.
I don't trust or recommend any new-age practices, they only reinforce the illusion precisely because the premise is to suit one's egoic preferences/likes-dislikes. Anything that isn't leading towards shedding attachment to these and realising that they are quite not "you" is fake and a waste of time.
The criterion as always is to abandon views, ideas, fantasies of enlightenment and liberation, and become painfully truthful to yourself about yourself right where you are. End all reactivity (a.k.a. stop reacting to the reactivity that plays out as thoughts, views loaded with emotion-sensation. No it doesn't mean not feeling them, only not reacting to them).
Do not try to conclude or not conclude.
In other words, shut the fuck up (inwardly) and go all in.
Try it and see how hard it is for you (at least initially) and why you go from doubt to doubt endlessly.