What is the author's style in True Night by Gary Snyder?

The poet uses a variety of poetic devices to create the effect he wants. In the first line, when the poet is fast asleep in bed, the assonance and alliteration, as well as the use of words of one syllable, create an effect that suggests a state of consciousness different from the normal waking state. The assonance is in the repetition of the "e" sounds in "sheath" and "sleep." These two words also show the use of alliteration, the repetition of initial consonants. The alliteration also occurs in the second part of the line, in "black" and "bed."