This document discusses M.A.K. Halliday's systemic functional linguistics model and functionalist stylistics approach. It explains the three metafunctions of language according to Halliday - the ideational, interpersonal and textual functions. It also outlines Halliday's transitivity system of six process types and the participants involved. The document emphasizes that language enables the representation of experience and construction of meaning through the interweaving of these metafunctions and systems in the grammar of clauses.