The poem reminds parents that they are like the sea, not a rock. They should not be rigid and demanding, but rather flexible and nurturing. They should remember that they have the power to weather any storm and that they can provide a safe haven for their children to express themselves. The sea is deep and mysterious, and parents should embrace the unknown and the different colors of life. The poem encourages self-care and reminds parents that they are human and need rest and relaxation, just like the changing seasons of the sea.