Hologram (ホログラム)

Pure-white scenery by now, be-invited

真っ + adjective is the emphatic prefix: 真っ白 ('pure white'), 真っ赤 ('deep red'), 真っ暗 ('pitch black'). 誘われる is the passive of 誘う ('invite'), positioning the narrator as called rather than choosing.

I (topic) go (emphatic), still haven't-seen (literary) world toward

見ぬ is the classical/literary negative of 見る ('see') — equivalent to 見ない. まだ見ぬ世界 ('a world not yet seen') is a stock J-pop phrase for the unknown future. The literary 〜ぬ ending elevates a common phrase into something solemn.

Was-traveling, mouse-color sky under

ネズミ色 ('mouse color') is a Japanese color name — a dull, neutral grey, distinct from 灰色 ('ash grey'). Color names borrowed from animals/plants are very common in Japanese: 桜色 (cherry pink), 鶯色 (warbler-green), 茜色 (madder-red).

Daily-changing's map, many dreams (subject) was-blurring

滲む ('to bleed/blur') is what ink does on wet paper — a beautifully soft verb. Pairing it with 夢 makes the dreams feel like wet ink — vivid but losing definition.

Tiny me's this stride even-with, that cloud's beyond up-to can-go I-wonder

ちっぽけ is informal/childlike for 'small / pathetic / puny'. Often used self-deprecatingly. 歩幅 ('stride length') is a precise technical word — pairing the precise with the cute (ちっぽけ) is the line's charm.

Wounded heart see-through-like, started-falling raindrops (plural)

Verb-stem + 出す ('to start doing'): 降り出す ('start raining'), 走り出す ('start running'), 泣き出す ('start crying'). The 出す suffix marks the moment of inception.

Repeat straight light (subject) crossing

Endlessly pierce-through faint afterimage

残像 ('afterimage') — the 'ghost' of light that lingers after you close your eyes. The song's title 'Hologram' rhymes with this concept: a luminous image that isn't quite real.

Both-eyes in burn-into, reach future (it.is)

焼き付ける ('to burn-imprint') is photographic vocabulary — to permanently fix an image. Used metaphorically for memorizing something so it can never fade. なんだ at the end gives an explanatory tone: 'the thing is, it's a future I can reach'.

Without-losing was-stuck-on (nominalized) (topic) black-white's sticker and

失くす ('to lose') is the transitive partner of 失くなる ('to disappear'). 失くさずに ('without losing') uses the literary 〜ずに ('without doing') ending. Standard 〜ない alternative: 失くさないで.

Important thing (object) we (topic) hide-completely-had

Layered: 隠す ('hide') + 〜てしまう ('end up doing') + 〜ていた ('had been'). 隠してしまっていた = 'had ended up hidden' — a regrettable past state.

Jewel-than flower-than star's light-than, beautiful dream what's-called

Stacked よりs build up a comparison list — gems vs flowers vs starlight, with the dream beating all three. 〜というのは ('the thing called X') sets up a definition or topic.

Selfishness, sticking-out, going-against, once drew infinity

わがまま ('selfishness / acting out') is what kids and lovers get accused of. はみ出す ('to stick out / overflow') often combines with rules: ルールからはみ出す ('break the rules').

Frustration also, loneliness also now, bubble-like burst-fly

弾け飛ぶ = 弾ける ('to burst open') + 飛ぶ ('to fly') — a vivid double-verb. The image is exactly what soap bubbles do: pop, then drift apart.

Straight road on, trip-even, scab about, now-than surely can-become-stronger

つまずいたって is the casual contraction of つまずいても ('even if (I) stumble'). かさぶた ('scab') is the perfect tough-but-temporary metaphor — fall, scab, heal, walk on.

Rainbow-color's light, tomorrow's shadow at, tremble each-time

〜度に ('each time / every time') after a verb-dictionary form: 会う度に ('every time we meet'), 思い出す度に ('every time I remember'). Standard recurrence pattern.

Heartbeat with, me (object) call voice (subject) is-felt

声がする ('one senses a voice') uses する idiomatically for sensory perception — same pattern as 音がする ('there's a sound'), 匂いがする ('it smells of...').

After-rain's rainbow at, bundle-into-becoming pour-down, infinity's gradation

雨上がり ('after-rain', literally 'rain-end') is one of those compact Japanese seasonal nouns — covers the whole post-rain atmosphere in three syllables.

Now blend-together

Stem + 合う ('do mutually'): 混ざる → 混ざり合う ('to blend mutually'). Same pattern: 助け合う ('help each other'), 分かり合う ('understand each other'), 響き合う ('echo each other').

This sky's under, what-kind-of place at being-even, without-fail reach should (assertion)