A Symbolical Dictionary
Ships (merchant) signify the merchandise and treasure which they bring; and are therefore the symbols of profit.
In former times the ways of trade were generally carried on by the means and work of slaves. And therefore in the Oneirocritics,f1 ships denote riches procured to a person by the labour of his slaves.
Islands, as has been shewn, are standing and fixed places of commerce and riches; but ships are only transient, moveable instruments to procure and bring them. And therefore ships denote moveable riches and wealth.