When Ground awakens to itself - as the Ground of seeing and seen, absent of I anywhere - it comes into the foreground to itself.
Ground in the foreground: One Taste
Whatever arises in form is then recognized primarily as Ground itself, as emptiness and awareness, so have One Taste. There is an infinite variety of form, of content of experience, yet always primarily as Ground itself, as Spirit, as the Divine Mind.
Form in the foreground: many tastes
Prior to this, when there is identification with aspects of the seamless field of seeing and seen, it is different.
If there is identification with an aspect of form, then form is is the foreground and the Ground (emptiness and awareness) is in the background. The many tastes of the infinite variety of form is in the foreground, and the Ground remains in the background, maybe not even noticed apart from in glimpses, and even then often not taken very seriously. It is always there, so taken for granted. It is so inconspicuous, so not paid attention to. It is in the background, so its potential for transformation - when allowed into the foreground, is not known. It is Other, so not explored as a possible I.
Seeing in the foreground: a taste of One Taste
If there is identification with the seeing itself, then the content of experience, the world of form, is revealed as a seamless whole, as one field, so this is the first taste of One Taste, it is the beginnings of One Taste. And as the world of form is recognized as no other than Ground itself, the Ground of seeing and seen, there is a deepening into this One Taste.
One Taste and an infinite variety of tastes
Since the Ground awakening includes form - the content of experience, and the formless - emptiness and awareness, it is more accurate to say that there is One Taste, and within this, an infinite variety of tastes.
Nothing is lost, apart from the not noticing of Ground. And much is gained, as everything is now recognized as primarily Spirit, yet retaining its infinite variety of tastes.