Replying to How can one achieve this?

No one has any hesitation, obviously, in taking the dream world as an illusion; for, when they wake up to this familiar world, the dream world disappears. But all of us find it hard to believe that this familiar world, which we all actually perceive and experience, is an illusion. If I jump down from an upper floor, I will certainly be fatally injured. This difficulty is because we are all part of this world and are attached to it in some way.
But a spiritual aspirant may ask, "Is there a higher state to which I can wake up, so that this waking world will disappear, just like the dream world?"