Guru is knowledge.
Guru is Consciousness.
Guru is not a physical personality.
Knowledge may be a person, a Book or a feel.
Knowledge is the way to Understand and Become That.
When we understand the Knowledge it is called Wisdom.
But each one us have to travel all alone to Understand and Become That.
Our destiny is to gain more Energy and Wisdom and to expand our Consciousness and to Create.
Your breath is your Guru.
Your breath is your Master.