One of the most important virtues to be cultivated is unshakable, unwavering faith — faith in the shastras (sacred scriptures) and the moral codes they contain, as well as in the Atma and your Guru (preceptor). Scriptures are designed to ensure the peace and prosperity of the world and the spiritual perfection of mankind. They have before them this great aim; they show the way to its realisation. So, you must place faith in such holy scriptures, Gurus (preceptors), and elders.  Gurus are indeed worth worshipping, for they show us the Shreyomarga (path of the ultimate fulfilment).  The one who has unwavering faith will achieve this wisdom.

 - Sutra Vahini, Chap 1, "Six Primary Virtues".

Steady perseverance alone will tame the mind. -Baba