Acharya Prashant explains that meditation is not about focusing on limited patterns or images, but about remaining within eternity. He describes the mind as a restless child that seeks comfort in finite things, which are ultimately too small to provide lasting peace. True rest is found by recognizing that we are already in the 'mother's arms' of the infinite, yet we often choose restlessness through our own free will. The speaker emphasizes that the mind requires constant activity and fear for its survival, which is contrary to our true nature. By maintaining a distance from the mind, we stop providing it with the energy it needs to create chaos and self-destruction.