There is something rather than nothing. Beyond belief, beyond ideas, theories and projections, here it is .....
When you were tiny there was no conceptual separation from the happening of the body-mind and this primary principle. Separation comes later - it’s a kind of collective delusion which is upheld in the reflective mind. This is the implication of the ‘no self’ pointer. You don’t exist… as such, what exists is the primordial ‘happening’. It’s obvious really - nothing particularly mystical about it - you existing is a kind of category error.
To use a worn out analogy, think of this primordial principle as an ocean… all there is is an ocean of existence. You (the body-mind) are a fleeting wave which has no existence other than the movement of the ocean. So yes, of course, there is this phenomenal expression which we call you or me (that’s how I’m able to address you right now.) This is not denied (Buddhists call this the conventional self.) But it is not a separate, fixed, independent or inherently existing entity - such a thing does not exist.
Reflectively we envisage ourselves as noun-like entities in a world of other noun-like entities and thus have sense of separation and fragmentation. When the divide and abstract tendency of the reflective mind is absent the primordial ‘happening’ of existence (the universal verb if you like) is once more unobscured. And it can dawn that right now there is nothing other than THAT.