I remember reading books on TM when I was a kid. Was fascinated by it even at the age of twelve.

Apparently the info and books are hard to find now, but I learned a lot from them ie how to astrally project at will. Apparently has grown into quite a large 'cult' now, still some great info available if you can find it. Good luck with that, though.
Transcendental MeditationFounder: Guru Maharishi Mahest Yogi, born in 1911, as Mahesh Brasad Warma, at Jabalpur, India. Started TM in 1965 at Los Angeles (USA), and his actual headquarters are in the luxurious old Hotel Sonnenberg, at Seelisberg, Switzerland.
Followers:
TM claims 2 million people, in 140 countries; with one million it the USA, and 8,000 people in each one of the other 139 countries?... it does not make much sense!...
It is a "religion"... and "big business":
TM is a "religion" based on the Hindu "Raja Yoga" (pag.82), to obtain the Buddhist "enlightenment (pag.109), here called "cosmic consciousness", "complete god consciousness" and "unity consciousness", in the different "stages".
- The Vedas and the Gita are "indispensable".
- It is a full-life project: You will spend on it all your life and money... with the assurance that, at the end, you will be liberated from reincarnation.
The Maharishi ("Great Sage"),
Became millionaire in the 70s, with the help of the Beatles, making $20 million a year; founded the Maharishi International University in Fairfield (Iowa, USA), he uses 2 Rolls Royces and a personal Helicopter; recently he has bought a 1,000-acre former Air base in Suffolk, New York to be turned into a Natural Law University. In 1993 he announced the plans to create a $879 million amusement park in Niagara Falls and a dozen universities in Canada, one in each province.
-The ultimate goal of the Yogi is to lead eventually all humanity to Unity Consciousness... and "there will not be a place for the unfit in the "age of Enlightenment", says the Maharishi.
The Method:
The idea of TM is to transcend the conscience through 7 levels of consciousness, each one obtained by attending an expensive course.
-The essence of the "method" is the Raja Yoga to obtain the Buddhist "enlightenment" (pags. 82 and 109):
To suppress your "mind", "body" and "character", using "mantras" on a sitting position, for long hours, until your mind gives up and your body is numb, and all of it being humiliated by a guru... until the "crisis" comes... then, your "human mind" gives up, and you are left with your "animal mind", without worries about yesterday or tomorrow... and after 73,500 minutes, and several thousands of dollars, you get the "crisis", the Buddhist "enlightenment"; the ultimate "unity consciousness", in MT.
The "Mantra":
Just to receive the "mantra" costs money, and it is so individual that it can not be told not even to the wife, she has to pay for her mantra!... they have 16 mantras, and all of them are the name of a Hindu-god, in sanskrit, of whom the student knows nothing... the student has to repeat the same name thousands of times... and for 40 minutes every day for life after his initiation... and read the Gita daily.
- Please, get out of TM, come to "Jesus"... that's a good mantra, and is the real God!... and costs you nothing!
The success:
TM had great success in the 70s with the enrollment of the Beatles, Mia Farrow, Rolling Stones, Beach Boys... but later the Beatles left MT, concluding, "we were wrong", with John accusing the Maharishi of being a "lecherous womanizer"... and the Maharishi headed home to India, saying "I know I have failed, my mission is over".
- But his mission was not over... he came back very soon to the West dropping the religious terminology in favor of psychological and scientific language: So, the "Spiritual Regeneration Movement" became the "International Meditation Society", the "Science of Creative Regeneration Movement", the "World Plan Executive Council", the "Student International Meditation Society", "American Foundation for Creative Intelligence", "American Meditation Society"...
The Propaganda...
"To fly" like Peter Pan:
-The propaganda pamphlets are incredible: They offer peace, health, success... to the individual, society, and the world... to end with crime, drugs, prisons and hospitals... TM claims that its leaders have 50% less cancer, 80% less heart decease, higher IQs, and provides potential cures for Aids and cancer.
... And all of this doing nothing... just repeating the mantra thousands of times!...
- The advanced "Shidhi Program" ("occult powers"), offers the ability to walk through walls like the Resurrected Jesus, become invisible and levitate... "to fly", just like Peter Pan!... but only about 6 inches from the floor... and even so, offers by the press of up to $10,000 to witness a meditator wing have gone unclaimed... and this "Shadhi" only can be taken after paying for the other 7 expensive courses...
TM claims it is not a religion:
Several Courts in the USA have ruled TM as a "religion"... and even the "Initiation" is idolatrous worship: The initiation song is devotional Hindu hymn. Then the instructor invokes the Hindu gods and presents 17 offers to the different Hindu gods, praise them and adores them... and after that he whispers the secret mantra the initiate...
Reason for the success of MT:
The main reason for the success of the MT is not the "anti-meditation" with the mantra... but the huge, well done propaganda, and the action of the "devil", the false god invoked thousands of times, who possesses the initiate, giving him all kinds of wicked deceptions and hallucinations.
- The Bible teaches that every "false god" is an "idol", a "devil" (Psalm 96:5)... and furthermore warns us about "the working of Satan, who uses all power, signs, lying wonders, and every kind of wicked deception for those who are perishing, because they refused to love the truth and so be saved" (2Tes.2:9-10).
- Get out of TM... come to "Jesus", He is the real God... and He is in love you!... let yourself to be loved... He is waiting for you in the Eucharist every day! (Jn.6:53, Matt.6:11).
- Jesus died in the Cross to clean all your sins, all your bad Karma... and "resurrected" to give you a new life on earth full of peace, joy and love... and after living the glorious adventure of Christ on earth, you will go to eternal real Heaven, without any reincarnation...
- Believe in Jesus, right now... by doing the simple things He tells you to do... Baptize yourself in His only Church... receive him daily in the Eucharist,, because if you do not eat his flesh you have no life (Jn.6:53)... and live on earth with fear to nobody and to nothing, doing the glorious deeds of a child of God... the most glorious adventure of a person filled with the Holy Spirit in Jesus Christ.
- "TM" is only a scheme to make money... based on the Hindu Raja Yoga to obtain the Buddhist Enlightenment...
- Get out of it while you can... or it will take all your life and money...
- Come to "Jesus", the best mantra... and He is really God... right now at your side.