Narayana Guru with Rabindranath Tagore

Rabindranath Tagore visited Narayana Guru in 1921. After his visit he paid tribute in the following words "During my travels throughout the world, I have had the good fortune to come in contact with several saints and maharishis... But I have frankly to admit that I have never come across one who is spiritually greater than Swami Narayana Guru or a person who is at par with him in spiritual attainment."