幻を追う[maboroshiwoou] to pursue an illusion
幻影[genei] phantom
幻覚[genkaku] hallucination
幻覚剤[genkakuzai] hallucinogen
幻姿[genshi] apparition

幻視[genshi] visual hallucination
幻想[gensou] illusions
幻想劇[gensougeki] non-realistic drama
幻像[genzou] phantom

彼所[asuko] there (place physically distant from both speaker and listener)
彼の[ano] that (someone or something distant from both speaker and listener, or situation unfamiliar to both speaker and listener)
彼の人[anohito] he
彼の方[anokata] that gentleman (lady)
何か彼にか[nanikakanika] this and that

何だ彼だ[nandakanda] something or other
何でも彼んでも[nandemokandemo] anything and everything
何とか彼とか[nantokakantoka] something or other
何やら彼にやら[naniyarakaniyara] this and that