Wikipedia has an entry on Kumaranasan, a great Malayali poet who lived in the early 20th century. The interesting fact is that it was Sri Narayana Guru who influenced him.
Kumaran was dogged by ill-health right through his early life. When he was eighteen, Sree Narayana Guru visited his house at the request of his father. Kumaran was bedridden at that time. The great saint suggested that Kumaran should stay with him and become his disciple. The little boy found the invitation irresistible. Thus began a new phase of life for the young lad.