Lucid Dreaming

Spoiler Alert!! Read further only if you have watched movie...

Ok, so do we have Lucia tablets? What is Lucia/Lucid?

Lucid Dreaming

A lucid dream, in simplest terms, is a dream in which one is aware that one is dreaming. The phenomenon had also been referred to by Greek philosopher Aristotle who had observed: "often when one is asleep, there is something in consciousness which declares that what then presents itself is but a dream". 

Can we term Lucid dreaming as "Yoga Nidra?". Which explains yoga nidra as a state of mind between wakefulness and sleep that opened deep phases of the mind. It can also be referred to Out - Of - Body experience. An out-of-body experience (OBE) is an experience that typically involves a sensation of floating outside of one's body and, in some cases, perceiving one's physical body from a place outside one's body.

How does a Lucid dream initiates?

A lucid dream can begin in one of many ways. A dream-initiated lucid dream (D.I.L.D.) starts as just a normal dream, and the dreamer eventually concludes it is a dream. A wake-initiated lucid dream (W.I.L.D) occurs when the dreamer goes from a normal waking state directly into a dream state, with no apparent lapse in consciousness. The wake-initiated lucid dream occurs when the sleeper enters REM(Rapid Eye Movement) sleep with unbroken self-awareness directly from the waking state.

Feel of Lucid dream

A lucid dream is rich and detailed - sometimes with even greater awareness than you have right now(a normal dream), like 360-degree vision or you existing in two places at the same time. 

Chemical that simulate Lucid dreams

Note: I do not endorse or do not advice to try anything below. You are sole owner of your actions

Galantamine,  which is used to treat Alzheimer's disease and various other memory impairments is said to be used by people who practice Lucid dreaming.