What does this quote mean?

what does this quote meawn " what profit hath a man of all his labour which he taketh under the sun? one generation passeth away, and another generation cometh; but the earth abideth forever... the sun also ariseth, and the sun goeth down, and hasteh to his place where he arose, the wind goeth toward the south, and turneth about nto the noth; it...... -cclesisates