negative astral planes have been created, basically all the negative energies have come together to create negative dimensions of Astral Substance, usually of a very low and chaotic vibration. Intoxication by alcohol or other drugs is a common way to resonate with these negative astral planes and attract entities into your energy. In pubs and clubs you will find a strong connection to such planes and an abundance of entities looking for a potential host.
At death, if you are experiencing extreme emotions such as anger and hate you will be taken straight to these negative astral planes as soon as you leave the body. This is because your astral body will be resonating with the negative planes and because like attracts like in the astral world you will suddenly find yourself in these realms. Once there you will likely see all kinds of hallucinations such as monsters and the like until your astral body begins to shatter (this is often referred to as ‘the afterlife wandering’ or ‘the Bardos’ in Tibetan Buddhism). At this point your light body will be released and you will continue up into higher dimensions but the part of your astral body that was attracted to the negative realms will likely break off as an entity. If the emotions felt at death were very common and very much a part of your personality while incarnated then the entity will be larger. Once separate the entity will first try for a host with someone or somewhere familiar such as your home or your friends and family. If it can't host on these people it will probably go for the nearest pub.
The lines along which the astral body shatters are along the lines of crystallization. The more crystallized your astral body and therefore the more rigid your personality was, the more entities will be created and the larger they will be.
The information here should not scare you as you have probably been living with entities for years. With the practices available in Past Life - Regression you will be able to find and explore entities and even begin clearing them. It is amazing what a difference it can make when a core entity is cleared. Emotional issues that have plagued people for years are sometimes cured almost immediately. The person must continue the work of clearing their own energy as well but the difference can be very tangible when an entity is thoroughly explored and cleared.
If you clear your own astral body while still alive you will not leave any entities behind for others to clean up. Through spiritual work your astral body is cleared of