KanjiJLPT N1
Immersed

immersed, soak, dip, steep, moisten, wet, dunk

Mnemonic

A storm floods the palace. Your golden comb and royal crown sink beneath the rising waters. Once more you plunge in, fully immersed, groping blindly through the murky depths to recover your precious treasures before the current sweeps them away forever.
Additional thoughts
Picture the storm churning water into the throne room. The comb and crown slowly sinking—you dive after them, soaked and absorbed in the desperate search. The slow saturation mirrors the meaning of gradual immersion.
Quick recall
A storm sinks your comb and crown; once more you dive in, completely immersed.

Details

The keyword for 浸 is immersed. This kanji conveys the idea of soaking, dipping, or being steeped in liquid, describing the process by which something is gradually permeated or saturated by a fluid. It can also be used figuratively to express being deeply absorbed or engrossed in something, much like being submerged in water. The sense is one of slow, thorough penetration rather than a sudden plunge.
On'yomi
しん
Kun'yomi
ひた.す、ひた.る、つ.かる