Cast your bread upon the waters, for you will find it after many days. (Ecclesiastes 11:1, ESV)
Ecclesiastes 11:5 NIV
As you do not know the path of the wind, or how the body is formed in a mother’s womb, so you cannot understand the work of God, the Maker of all the maker of all things.
Remember Your Creator While Young
Ecclesiastes 11:9-10 NIV
You who are young, be happy while you are young, and let your heart give you joy in the days of your youth. Follow the ways of your heart and whatever your eyes see, but know that for all these things God will bring you into judgment.  So then, banish anxiety from your heart and cast off the troubles of your body, for youth and vigor are meaningless.