Yes. There may be a sense of expansion or contraction, of opening or closing, and that’s happening within the space any experience is happening within (including the sense of conventional space).
It’s literally boundless, since any boundary is imagined (a mental image) happening within this space.
It’s already here. It doesn’t close. It doesn’t open. It allows for (and is, takes the form of) any experience of closing and opening, contraction and expansion.
Said another way, it’s all happening within and as presence. Even the idea of presence (the words, images, sensations representing presence in our mind) is happening within and as this presence.