Tasawwuf is Islamic knowledge which focuses on the spiritual development of the Muslim.
Allah SWT sent His final messenger, Prophet Muhammad Sallallaahu alaihiwasallam , as a source of knowledge for the entire ummah.
Prophet Sallallaahu alaihiwasallam was the fountain of Quran, Hadith, Tafsir, Rhetoric, Fiqh, and so on.
After the Prophet Sallallaahu alaihiwasallam, the scholars of this ummah carried on and propagated each of these branches of knowledge. Because no one person can attain the perfection of the Prophet Sallallaahu alaihiwasallam , who single handedly assumed all of these roles, various branches of the Islamic sciences developed.
For example, Imam Abu Hanifah (Rah) preserved the science of Fiqh and after him thousands of scholars continued in his footsteps. Hence these scholars preserved the Fiqh of the Prophet Sallallaahu alaihiwasallam.
Similarly Imam Bukhari (Rah) and the other famous scholars of Hadith, preserved the words of the Prophet Sallallaahualaihiwasallam.
The scholars of Tajweed preserved the recitation of the Prophet Sallallaahu alaihiwasallam . And, the scholars of Arabic grammar preserved the language of the Prophet Sallallaahu alaihiwasallam.
The unified knowledge of all the goodness of the above can be transmitted only by a Holy Sufi Saint from the Ahlul Baith (the descendents) of Prophet Sallallahu alaihiwassallam and Chosen by the Almighty Allah Subhanawathala and Graciously Granted the Status of Quthubuzzamaan.
At present His Holiness Quthubuzzaman, Shamshulwujud, Shiekhul Kaamil, Jamaliya Assyed Khaleel Awn al Hassaniyul Husseiniyul Hashimiyee MoulanaNayagam Avargal is the only such Great Islamic Saint Sufi, who can guide us all to the righteous path in this world and the hereafter.
Those who got hold of his hand will come out successful in this world and the hereafter for sure with the Almighty Allah's Grace.