Poet 
Sekera is best known today as the landmark poet in the modern Sinhala literary tradition. His unique poetic style and the nature of his writings which carry themes such as tradition and modernity are still central issues of our times, investing his work with a continuing significance.

As a poet he was pre-occupied with the challenge of articulating modern experience in an appropriate poetic diction.

He was also influenced by the Japanese Haiku, and English and French free verse. He blended the everyday reality of life with an innovative use of language; in Heta Irak Payai he also experimented with typography in an Ezra Pound-like manner. In his later works he emerged on a more formal mode and wrote several long poems such as Maknisadayath, Rajatilaka Lionel saha Priyantha, Bodima,Nomiyemi, and Prabuddha.