Ramana Maharshi (1879-1950) is considered by his devotees as the Greatest Sage that has been born, as an act of Divine grace, on this planet for a millennium.
It was affirmed that not since Adi Shankaracharya has any Enlightened Being made such an impact on the spiritual development of our world both in the East and in the West.

He was an inspiring Poet and wise Philosopher, but above all he largely taught through Silence.
This is the rarest gift, even amongst Great Sages, and is the hallmark of the highest, most evolved example of humanity.

Sri Ramana Maharshi was a model of love and compassion embracing all who came to him with true equanimity, and never refused guidance to any who approached him.

His simple method of Self Enquiry and Self Surrender opened up the path of advaita to all people.
It is an open secret.
The only qualification is sincerity, and a serious intent to make effort along the lines he suggested.

At the age of 16, Sri Ramana Maharshi, named Venkataraman at birth, had an intense spiritual experience involving a sudden and overwhelming fear of death.
He went into the experience and it became the death of his ego, which invoked a flood of Self awareness.
Soon after, he left home for Arunachala - a South Indian mountain whose very name had mysteriously called to him as a holy place worth seeking - to pursue a purely spiritual life. He spent his time in deep meditation, often entering high states of consciousness and samadhi . Eventually he settled on the slopes of Arunachala and his followers built an ashram around him. He answered their questions and commented on the spiritual works they presented him, but always with the same simple issue, pointing to the source of our thoughts summed up in the question: “Who am I?”

Essential Concepts in the Yoga of the Spiritual Heart

1. The Spanda
   
2. The Witness Consciousness
3. The Open Attention
   
4. Sublimation
   
5. The Sahaja
   
6. Advaita Vedanta
   
7. Atman
   

Glossary
Suggested Reading
Shankaracharya