Drugs are a very interesting topic when looked at from a metaphysical point of view. While they impact on the nervous system in a profound way, they also affect subtle bodies and states of consciousness immensely. The changes in states of consciousness caused by drugs are the reason for their widespread recreational use and provide many users with different perspectives on the World. Many of the feelings encountered through drug use are very similar to states of consciousness achieved by spiritual seekers and meditators throughout the World. States that we feel in between lives while exploring higher dimensions can be synthetically created with the right mixture of chemicals.
Although the states of consciousness achieved through drug use may feel similar to these higher dimensional states they are not the same because the ego is still playing a large part in the user’s orientation. It is possible to have real spiritual awakenings as a result of drugs but sometimes these actually lead to a further solidification of the ego. As the states are achieved through drugs and not by clearing and raising the vibration of the subtle bodies, the end result is a more chaotic and crystallized astral body which can even become cracked or begin to shatter as a result of the sudden raise in vibration caused by the drug. The possible dangers of drug use are damage to the astral body, loss of large amounts of jing, a weakening of the etheric, disorganization and damage to the chitta, spontaneous kundalini bursts and sudden incarnation of parts of the light body which have very high vibration. These dangers run along side the physical damage that can be caused to the brain, nervous system, internal organs and glands.
The most dangerous drugs in terms of damage to the astral body and chitta are hallucinogens like LSD or Magic Mushrooms. The states of consciousness induced by these drugs can be very high and can cause the light body to strongly incarnate into the astral body. As it does so the much higher vibration of the light body with its various structures of spinning light impacts into the astral and thereby increases its vibration very suddenly. If the astral body has weak spots or holes the light body will impact further and if it also has dense crystallizations it can crack and begin to shatter. As a result the individual may have an amazing spiritual awakening but when the drug wares off the light body will move back out and the astral will slow down again. If broken the astral body will never again be the way it was before the trip. Repair could take a very long time even with the right practices.
Other drugs such as ecstasy, other amphetamines and cocaine can cause the same type of problem but it's not as likely to be so sudden. The raise in vibration will not be as high with these drugs but when continually used the astral body can become very disorganized leading to a psychotic episode which may have the same results. These drugs when used repeatedly can cause holes and weak spots to become worse and crystallizations to become more brittle. This combination opens the ego structure up to possible psychosis.
Ecstasy is probably the worst drug of all when it comes to physical brain damage. As it releases huge amounts of serotonin from serotonin neurons it actually destroys the neurons. This destruction can be very quick and the implications are massive. Keep on taking ecstasy and pretty soon you will have very few serotonin circuits left and you are destined for depression. The lack of serotonin will prevent parts of the chitta from incarnating into the brain and so a disconnection from parts of your personality (located in the chitta) can occur. Repair of such brain damage is usually seen as impossible so if you do nothing it will not repair. I believe however that a regeneration of brain cells is possible through meditation and raising sexual energy into the brain. If this is possible it will take a lot of work and a full recovery may still not be possible.
Marijuana is also a very powerful drug, these days often made extremely potent with hydroponics. This drug can cause the same types of problems as the amphetamines but it will generally take longer and the threat is not as strong for some people. Depending on the make-up of your subtle bodies, marijuana may not be very dangerous or it could be quite a bad idea. If you become extremely paranoid it’s time to stop. If extreme negative symptoms occur with its use you can be sure that it is damaging you astral body and chitta which could lead to psychosis.
All street drugs have the potential to cause serious problems but the danger is far greater for certain people depending on how their subtle bodies are structured. Trying drugs is not necessarily a bad thing as they can certainly open your mind and show you other states of consciousness, possibly helping you to remember some of your higher and inter-dimensional aspects, but there is a risk that using a drug once could cause serious damage that cannot be fixed in this lifetime. It is a choice you make and you are responsible for it, whereever it might lead. To keep on using drugs is always bad for your subtle bodies and will not speed up your spiritual transformation. It is best not to use drugs at all, especially as you can reach higher consciousness without them and clear all the pain that you want to escape from. Drugs are not an escape but make things worse. With spiritual practices you can escape for real; ecstasy can be yours.