I have an English question for a Brainliest

Why are ideas of love, friendship, and marriage the subject of many Shakespearean sonnets, such as 30, 55, and 116?

By showing that friendship can end sorrow, that love can and should be immortalized, and that marriage between true minds is steadfast and unchanging, Shakespeare's Sonnets 55, 30, and 116, respectively, depict the value of human relationships.