Humanity tends to label some things or places as sacred, holy, or spiritual. For example, there may be a sacred spring that has been considered to be a stream or well with spiritual significance. There are churches, mosques and temples that are considered holy. Even in my writing I describe some symbols as being spiritual. These things and places seem to have a peace and holiness about them.
This is wonderful, and there are some places that seem more spiritually significant than others, but in Non-Duality we recognise that there is only the Infinite One. There can't really be anything other than the Holy One. There can't be a place that is holy and another place that is not. There can't be a spiritual object or person and a non-spiritual object or person. There is only the Holy One.
This appearance of spiritual and non-spiritual, holy and unholy, sacred and profane exemplifies the error of dualistic thinking. It is just a play within the holiness of the Infinite One. We may consider these opposites and recognise that they are not clear cut, black and white. There is a spectrum or continuum of difference between them. So between the sacred and profane there is a wide scale of difference, including what we may describe as 'most sacred', 'secular', 'irreverent' and 'unholy'. This is the way with opposites. They can be considered as a continuum.
But this continuum of opposites is just a play of stretching out Oneness into otherness. There seems to be what is close to Infinite Oneness and what is far from Infinite Oneness, but Infinite Oneness is all there really is. Nothing can be far from the Infinite One. It can only appear to be near or far. This 'spiritual' recognition breaks down the whole dualistic view of reality. There is not a divide of the Holy One into holy and unholy. Even in the supposed division, we can recognise a non-separate continuum. Indeed, this continuum is the only way that a division can seem to appear. It's not a division at all. More like a stretching out of Oneness.
We're getting to the recognition here of the nature of the apparent separation in the world. This apparent separation of the Holy One can never happen. It can only pretend to happen. Separation, near and far, can only appear in Infinity by method of illusion. There is no unholy. There is no heaven and hell or a world in-between. There is only the Holy One, no matter what appears to happen.
There is only the Sacred. There is only the Spiritual. Reality is this sacred, holy, spiritualness. We give it these special names and utilise the sense of opposites to emphasise its significance. Really, the Holy One isn't special or not-special. It just is. There aren't holy or unholy places or people, there is just what is. But it's not a mundane What Is. It is holier than can be imagined.
It is the higher of the opposites that points to that which is beyond appearance, and the lower of the opposites that allows it to seem to appear by contrast. This Holy of Holies doesn't really appear. Appearance is its opposite. It is unseen, for who can see it? There is none other than the Holy of Holies. We cannot say here it is or there it is. It is right here, everywhere and nowhere. In no place and all places.
If we search for holiness we mistakenly presume it isn't here already. If we think we have found holiness, then we mistakenly believe that there is something other than holiness. So what do we do? We rest assured that there is only the Holy of Holies. If we think otherwise, recognise that this thinking is just a play of opposites. There is only the Holy of Holies.