Meister Eckhart never said there was no God he referred to the ground of being as Godhead instead of a separate deity apart from oneself.
"The eye through which I see God is the same eye through which God sees me; my eye and God's eye are on eye, one seeing, one knowing, one love"
"Gods ground is my ground, and my ground is Gods ground."
"Nothing in all creation is so like God as stillness"
"The very best and noblest attainment in this life is to be silent and let God work and speak within"
Obviously completely heretical stuff for a formal Christian.
I didn't say he said there was no god. If you understood what I said then you would understand Meister, he is a radical non-dualist, my comment was non-dual. Saying there is a god is to say he is something as opposed to nothing, eckhart explicitly states much like David Chaim Smith that god is neither this nor that, its a pure apophatic pathway and neti neti can get one there.
To say there is god creates a duality, hence silence, it's nothing. it's very much in line with the likes of nagarjuna and the madhyamika two truths. God being absolute (its impossible to not use dualistic language unless your graham priest) is nothing, infinity in a cantorian absolute sense is without end, middle, beginning, neither here nor there, being nor non-being it's literally Ein Sof. One has to die to conceptual designations and to one's self to become simultaneously nothing-everything. Entering into that register creates pure ineffability, you could call that experience god after the fact, but prior to it's a cloud of unknowing as psuedo-dionysus the areopagite pointed out.
Meister has to use language to attempt to convey this but it's experiential and negation is imo the easiest way to the placeless place he is speaking, entering the gateless gate is right where you are without elaboration, that is mind/rigpa.
It's like saying there is a front to the wall and a back to the wall, have you ever seen a front without a back?
That's why I said there is no god but he is correct, its dialetheism brother.
Heidegger would frame it as- Being is pure openness which is nothing but pure mediation, a letting-be. Being is all particular beings but is itself not a being.
I don't think eckhart is the best teacher by a long shot though. Dogen is better, smith is better and as a system dzogchen is the best imo.