Thread binding Teacher and Student

The thread binding the Teacher with his disciple is the most powerful current and provides an evident defense. How, then, can one manifest one's striving without the Teacher? Those faint-hearted ones who say they will go alone do not know the significance of the protecting net. Hence, the non-acceptance of the Chain of Hierarchy gives a result equivalent to destroying the principle of construction. Thus, only with a powerful Hierarchy can one be affirmed in construction.
-Master Morya through Helena Roerich, Heriarchy