> It's like the foam of the sea, which forms unexpectedly and then disappears.
It's a matter that comes up for lengthy discussions and then is dropped without resolution or effect. Some things, like sea foam, drift on without settlement. Endless discussion without reaching agreement.
> You're like a floating log without a resting place.
You have no fixed abode.
> Like Kerosene, poling his canoe with no obvious destination
Under the German administrator Winkler before World War I, a Palauan named Ngirakerisil (Mr. Kerosene) was employed as a canoe operator. Daily he would take the tireless administrator to a different part of Palau to inspect the various economic programs (largely coconut planting) instituted by the now legendary Winkler. The operator, least of all, could predict where they would be going next. The idiom is applied to any aimless person or action; indecision; a changeable person.
> Our nose is close (to the mouth), but cannot be licked.
i.e. we shouldn't be too sure of, or overconfident in, ourselves. The nose is very close to the mouth, but, no matter how reassuringly available, it cannot be licked by the tongue. The idiom cautions those who are careless with their possessions to be less assured about wealth.
> You think only of Present, not of Future.
Chelechang (Present) and Chrechar (Future) were brothers. Present was the favorite of his mother. These are the words of Future reprimanding his mother. The idiom is used of those who inadequately plan for the future.