Prepositions as imperatives
An interesting tidbit about an aspect of Modern Irish:
Many adverbs and several prepositions, which may indicate direction or movement either towards or away from the speaker, are often employed in Irish with the force of imperatives.
[For example,] Chugat an mhuc.
‘Beware of the pig.’ (Lit. Towards you (may well be coming) the pig.)
—from “Irish,” by Dónall P. Ó Baoill, in The Celtic Languages (2009), ed. Martin Ball and Nicole Muller, p. 198.