How does Shakespeare immortalize his friend’s beauty? /Central Idea/Subject matter/Substance of the poem"Shall I Compare Thee To A Summer Day ?"

Answer : The poet, William Shakespeare praises the beauty of his beloved friend(Mr William Harbert). He admits that Summer is lovely and attractive. But his friend is lovelier and more temperate than summer. Violent winds shake the blooming flowers. So it is not permanent (transitory).Sometimes the sun goes too hot and clouds often dim the golden colour of the bright sun. As no fair things last long on earth, earthly beauty is subjected to change. But the beauty of his beloved friend is indestructible. So it will suffer no change or death.The poet knows well that his friend's youth(beauty) will live eternally through his poetry.