One of his philosophical concerns was the concept of "bridal mysticism", which was outlined in his work Sadhana.  
This author helped spread his philosophy by founding a school of thought at his estate of Santiniketan.  One of his philosophical concerns was the concept of "bridal mysticism", which was outlined in his work Sadhana.  However it was for poetry, in such collections as The Gardener and The Crescent Moon, that he became known.  It was another collection, Gitanjali, that featured a poem that became his country's national anthem.  FTP, name this writer who wrote in Bengali, the first non-European and Indian to win the Nobel Prize in Literature.
This author helped spread his philosophy by founding a school of thought at his estate of Santiniketan.  
Sir Rabindranath Tagore