Hither = to here, thither = to there, yonder = over there, yon = short for yonder. English used to make three distinctions for adverbs of place, corresponding to location of the hearer (person in the verbal categorial sense): first person, I/we ~ here, second person, thou/ye/you ~ there, third person, he/she/it/they ~ yonder. Other languages, like Spanish, Latin have preserved the there and yonder distinction.

whither. whence, where
hither, hence, here
thither, thence, there
--, --, yonder

Ceci n'est pas un seing.