"Capital is money, capital is commodities. By virtue of it being value, it has acquired the occult ability to add value to itself. It brings forth living offspring, or, at the least, lays golden eggs"

Marx is going over the principle of capital, which he relates with both cash and commodities. Capital possesses a strange quality that permits it to increase in value and create wealth beyond its preliminary investment. He also uses metaphorical language, comparing capital to a living organism that produces offspring or valuable returns, like golden eggs. In general, Marx is taking a look at the power characteristics developed by the accumulation of capital in a capitalist society.