“Just before a new neural assembly forms, there’s a space of fertile emptiness, where structure
hasn’t yet congealed….So abiding increasingly in that fertile, generative space, in which neural assemblies take form, is a central process along the path of awakening. I think the people who are really far along in the practice are increasingly abiding in that territory. Thought is occurring, but they’re living more in that space of fertile freedom.” Mind Changing Brain Changing Mind
by Rick Hanson, The Dharma and Neuroscience
This sounds like the “fertile void” of all possibilities. Or it may be another way of conveying living in the right brain, not chasing after verbosity for a solid sense of self-existence. I think this is what “living in the silence” means.