. Even though, Tasawwuf people over exaggerate the importance of taking a Shaykh but it is not a religious requirement. the Shaykh tells you that you can't listen to lectures of any other Shaykh. Many people have benefited from taking a Sufi Shaykh. But then, a lot of people do things to please the Shaykh and they do it because the Shaykh told them to do it and many times, Allah is completely taken out of the picture. There is a huge potential for Shirk in taking a Shaykh. Considering all the harm nowadays because of Sufi cults and the cultish behavior of Tasawwuf people, it's best not get involved with any specific Shaykh. If you do, there is a very strong possibility that you will start hating other Muslims as can been seen by the behavior of the followers of some Shaykhs. There is A LOT of rivalry and hatred between the followers of various Sufi Shaykhs. .