Further, Mahāmati, according to the teaching of the Tathagatas of the past, present, and future, all things are unborn. Why? Because they have no [intrinsic] reality, being manifestations of Mind itself, and, Mahāmati, as they are not born of being and non-being, they are unborn. Mahāmati, all things are like the horns of the hare, horse, donkey, or camel, but the ignorant and simple-minded who are given up to their false and erroneous imaginations, discriminate things where they are not; therefore, all things are unborn. That all things are in their self-nature unborn, Mahāmati, belongs to the realm of self-realisation attained by noble wisdom, and does not belong essentially to the realm of dualistic discrimination cherished by the ignorant and simple-minded. The self-nature and the characteristic marks of body, property, and abode evolve when the Ālayavijñāna [store of conciousness/ideation] is conceived by the ignorant as grasping and grasped; and then they fall into a dualistic view of existence where they recognize its rise, abiding, and disappearance, cherishing the idea that all things are born and subject to discrimination as to being and non-being.
I added the word "intrinsic" here; as I think it clarifies things a bit.
Otherwise, I quoted this almost verbatim as it's somewhat self-explanatory.
The main thing is all the stuff you experience when you'd rather be doing something else is all Mind manifestations.