I am composed of 21 letters, and am the title of a poem by Bret Harte.
My 7, 19, 4 does not mean to sail.
My 15, 20, 6, 14, 3 will always prevail.
My 11, 10, 12 obscures the sight.
My 9, 6, 8 is an orb of light.
My 1, 2, 16 is caused by pleasure.
My 7, 13, 17, 14 is a time of leisure.
My 5, 6, 18 is the nickname of a boy.
My 9, 2, 4, 21 sometimes expresses joy.