The spiritual inner cover, which all seekers of the path must have at all times, is the hijab that acts as a shield. It is a shield that protects from all the chaos surrounding us and from our own negative qualities and lower self. This protective shield allows each individual to unfold and develop his/her inner true capability. For example, in order for a seed to grow, it needs to have its outer shell to shield and protect it from the harshness of the soil till it is ready to sprout and break the shield away and bring about what is within it. The same applies to the human being. We need the protective shield in order to unfold and develop our inner capabilities so we can live in balance and harmony and cognize our reality. This is the veil which is truly required by the seeker. Our aim in prayer, zikr, fasting and other Shari’at that God has given to all mankind is to sustain and enhance a suitable inner environment, conducive to the development of more delicate dimensions of our being, and to be capable of receiving the words of God.
“And it is not given to mortal man that God should speak unto him otherwise than through sudden inspiration, or [by a voice, as it were,] from behind a veil, or by sending an apostle to reveal, by His leave, whatever He wills [to reveal], for verily, He is exalted. “(Holy Qur’an, 42:51)
According to the teachings of the M.T.O. Shahmaghsoudi School of Islamic Sufism®, the source of this sacred light resides in the heart of the believer. Hazrat Molana Shah Maghsoud Sadegh Angha, the 41st Sufi Master of the school has named this the “Source of Life.” He teaches that the human system has a built-in mechanism which is equipped with 13 electromagnetic centers. Cognition and development of these centers create the required harmony which facilitates development of the spiritual dimension of the human being. The Arif (Sufi Master) is the light of the path, and guides the seeker in the path of Self-knowledge. 
- Molana Salaheddin Ali Nader Angha , Theory “I”,( Riverside , CA : M.T.O. Publications®, 2002)