I of course am only a uneducated layperson but will venture a guess...
REality is ourselves. How it presents to us though not obvious is not random. It is like a intricate web of cause and effect with the web strings as awareness. It is really very very complex and intricate, beyond the actual observation if one has concept as filter.
It is like a centrifuge precipitating out. A solidity is through cause ignorance and hibitual inclination/tendency, made to exist. This realm this life, as solid. So as solid it is like a nail on our finger a part not aware, but a function of a aware thing. So really it is the same. Nails are part of body.
So what appears to be nonconnected.... a rock crushing a person is really a related to aware thing.
As related in this fashion it serves only to exercise its origination, which is self expression/delusion. Aspect of this delusion is karma and exerciseing or playing out of karmic effect.
So like nails are to body so is real solid event to awareness/cognition/mind. Nails only play out body, or function in relation to body. So this realm and events in it only playsout or functions in relation to awareness. Keep in mind awareness is not simple awareness, but a cognitive function. Which includes habitual aspect and all the rest. Misconstrued but essentially.... as if it were a thing solely invented to understand..anything. Which is the basis. Consciouness/mind. So like a cart with a broken wheel self and other ignorance, drives the cart a certain way.That cart is on the way to creation of karma and a playng out of the karma due to the effect of the broken part. That which misconstruces this understanding machine we may be to be a self that understands.
I can elaborate, this layperson of little understanding, in some manner. Probably quite inefficiently
I can express only what I find but can substantiate much of it in buddhist thought, and provide that if requested.
"This order considers that progress can be achieved more rapidly during a single month of self-transformation through terrifying conditions in rough terrain and in "the abode of harmful forces" than through meditating for a period of three years in towns and monasteries"....Takpo Tashi Namgyal.