A simple explanation in vernacular: After a spring of hard work and sorrow, in summer, Yingqiu begins to go smoothly. After autumn and the harvest after the winter solstice, it is like riding a crane up to Yangzhou and becoming a wealthy immortal.
Comprehensive analysis: This first lot is inauspicious first and then good (the lucky lot), which contains the inspiration of "first bitter and then sweet". Without hard work, what will be the harvest? Sowing in spring and growth in summer are the prelude to harvest after autumn and winter.