Life itself is the Supreme Guru.
Be attentive to its lessons and obedient to its commands.
When you personalize their source
you have an outer Guru.
When you take them from life directly,
the Guru is within.
Remember, wonder, ponder,
live with it, love it, grow into it, grow with it,
make it your own –
the word of your Guru, outer or inner.

Put in all, and you will get all.

Sri Nisargadatta Maharaj