In the Holy Quran Allah says;Meaning: O' believers! fear Allah persistently and find medium to get close to Him.(Al-Maida-35)
In this verse the word Waseela (medium) refers to a Kamil Murshid. According to dictionary waseela (medium) means such source or means through which one can reach ones destination and it should be so helpful that all the needs of the needy are fulfilled and he is completely satisfied by obtaining all goals of his life. Lissan-ul-Arab (volume II-page 725) defines Waseela as "by means of which closeness to some other thing is achieved".
According to Shariat, Waseela (medium) means to find closeness to Allah through a person who is already close to Allah and His beloved, who has travelled the mystic pathRead Full
Hazrat Sheikh Data Ganj Bakhsh Ali Hajweri (radi Allahu anhu) (400-465 A.H.) narrates from Hazrat Murtaish (radi Allahu anhu). "Tasawwuf is refined character. This refined character may be attained in three ways:
"The King of this world and the hereafter is Shah Abdul Qadir The head of the children of Adam is Shah Abdul Qadir. Sun, moon, heavens, the throne and the pen, They all get their light from the heart of Abdul Qadir."