tīvreṇātma-samādhinā

tivrenatma-samadhina
jnanena-in knowledge; drsta-tattvena-with vision of the Absolute Truth; vairagyena-with renunciation; baliyasa-very strong; tapah-yuktena-by engagement in austerity; yogena-by mystic yoga; tivrena-firmly fixed; atma-samadhina-by self-absorption.