Conscious attention is thermodynamic, it does work or requires work, burns food, it increases entropy. It is not this kind of attention that witness experiencing and the void of experiencing. That one does no work, needs no energy, is outside of thermodynamics, which is what makes it so hard to achieve. If you move towards it you overshoot it, if you tax attention on its behalf you leave it behind, even though if you were to translate its discrimination into a mental distinction it would be one at the very limit of difficulty, or a little beyond. The two kinds of attention and their differing objects are not incompatible, they are as they say, orthogonal. The mental one is naturally the only one you can work on, so if you have to do something you might as well.