Normal people live in the real world and their dreams are on the first floor. If you want to enter the second dream, that is, the dream in the dream, you must take ordinary drugs. In the case of taking general drugs, there are two ways to wake up from a dream (whether on the first floor or the second floor): the first is the so-called' kick', that is, the impact of gravity falling. The second is being killed. Of course, it is also a bad idea to wait for the efficacy to expire.
If you want to enter the third dream, that is, the dream in the dream, the general drugs are ineffective, so you must strengthen the drugs. However, the side effect of intensive drugs is that if you are killed in a dream, you will not wake up, but will enter the lost field, so you can only kick up.
From the spiritual point of view, love, love, love and love represent the dreamer's soul entering another space, in order to find the answer in real life with what he saw in his dream.
As for the dream on the third floor (dreaming of love, love, love, love), it is a dream of love, which is basically a strengthening medicine that can be entered in movies. And if you are killed in a dream, you can't wake up, you can only wake up in a stimulating way. In these dreams, this is an exciting way to wake up. In fact, seriously, if a normal person enters the multi-layered dream in the movie, he would have lost his mind. The biggest fear is that when I woke up, I thought I was in a dream. In the movie, the hero's dead wife always thinks she is still dreaming after waking up, and wants to wake up by suicide, but she is already in reality. This is the consequence (terrible) that dreams cannot be separated from reality.