Mother gives the first birth to a child. We come into the world through the mother. But second birth is through the Guru. The master delivers you the knowledge and skill.
We all play the role of teacher, guide, guru, but when the spiritual knowledge is so total, that one is called Sathguru. An Acharya (teacher) gives knowledge and Guru gives height of awareness and makes you alive. Acharya gives information; Guru gives intelligence, an awakened intelligence.
Guru is a tatva — an element, a quality inside you. It is not limited to a body or a form. Guru is too big for you to make. Guru comes in your life in spite of your refusing or rebelliousness. Don't struggle to make a Guru. Just relax. Wake up and see. Feel grateful. Give all your garbage to the Guru and be free. Guru makes gold out of garbage. It is easy to make that change because everyone is made up of that one thing.
When your life is full, you get a feeling of gratitude then you start with the Guru and end up adoring everything in life. Guru is just a beginning. Whenever you praise, the praise goes to the divine. When you praise someone, your own consciousness is expanding. So for your own sake, adore and venerate others.
That is why we celebrate Guru Poornima. Guru Poornima is the day to feel grateful for the great knowledge you have received from your Master. There is a definite change inside you. Gratitude and humility together blossom a genuine prayer inside you!