:::Unseen evil spirits are involved either they know it or not, also note that Sophrology(something new) is also working with unseen evil spirits, it is a combination of buddism, japanese zen, yoga,hypnosis, and so on, if you call upon the unseen it better be your creator or you are doomed. 

Qur'an chapter 4 verses:

116. Verily! Allah forgives not (the sin of) setting up partners in worship with Him, but He forgives whom he pleases sins other than that, and whoever sets up partners in worship with Allah, has indeed strayed far away.

117. They (all those who worship others than Allah) invoke nothing but female deities besides Him (Allah), and they invoke nothing but Shaitan (Satan), a persistent rebel!

118. Allah cursed him. And he [Shaitan (Satan)] said: "I will take an appointed portion of your slaves;

119. Verily, I will mislead them, and surely, I will arouse in them false desires; and certainly, I will order them to slit the ears of cattle, and indeed I will order them to change the nature created by Allah." And whoever takes Shaitan (Satan) as a Wali (protector or helper) instead of Allah, has surely suffered a manifest loss.

120. He [Shaitan (Satan)] makes promises to them, and arouses in them false desires; and Shaitan's (Satan) promises are nothing but deceptions.

121. The dwelling of such (people) is Hell, and they will find no way of escape from it.