Extend.

Ruskin, Rocks and Ferns in a Wood at Crossmount, Perthshire, 1847

And for the sublime, — if we consider what are the cares that occupy the passing day, and how remote is the practice and the course of life from the sources of sublimity, in the soul of Man, can it be wondered that there is little existing preparation for a poet charged with a new mission to extend its kingdom, and to augment and spread its enjoyments? 

William Wordsworth