Ecclesiastes 11:7 says, Truly the light is sweet, and a pleasant thing it is for the eyes to behold the sun:  Matthew Henry sees this and verse eight as Solomon telling us how to prepare for death after telling us how to live life.  That may be true, but we can certainly say that these verses tell us that even if we live in the light, dark days will come.  When days are going well, when everything is light, life is indeed sweet.  I believe we can all look at life and see that some days stand out as better than others.  Yet, we must remember, as verse eight says, But if a man live many years, and rejoice in them all; yet let him remember the days of darkness; for they shall be many. All that cometh is vanity.  Solomon tells us that even if we live a long life and enjoy all the years, we must not forget the dark days.  We must learn from the times of struggle and not simply attempt to ignore them.  We cannot allow the dark days to overpower us, but we cannot pretend they didn't happen, even when we are most filled with joy.  This world is going to have dark days, but the one to come, for those who are God's children, will be full of nothing but light.  Verse nine says, Rejoice, O young man, in thy youth; and let thy heart cheer thee in the days of thy youth, and walk in the ways of thine heart, and in the sight of thine eyes: but know thou, that for all these things God will bring thee into judgment.  I believe Solomon was speaking sarcastically in this verse.  He was telling us while we are young to go ahead and do whatever our heart tells us to do if we so choose to live without God's direction.  Young people are more likely to be less concerned about the ramifications of their actions.  When we look at what college life is portrayed as today, we can see that even those who are considered to be intelligent are shown to act very foolishly as they follow their heart or the crowd.  Solomon also issues a warning, and that is that God will hold us accountable, even if we are young.  Once we are old enough to know right from wrong, we are accountable for our actions.  No records are sealed with God, no matter our age once we know right from wrong.  Verse ten concludes with, Therefore remove sorrow from thy heart, and put away evil from thy flesh: for childhood and youth are vanity.  We are called on to put evil from our heart, and we can only do this successfully by turning to the will of God.  All else amounts to nothing.