Antoni in Act 1, Scene 1. Really need help :(

Hi all, I am a Secondary 2 student in Singapore and I am not really good at Literature. I am trying to improve my skills in Literature and I am asking here for some help about Antonio in The Merchant Of Venice, Act 1, Scene 1.

Here is my question: Antonio seems to have it all. Why then, is Antonio, so sad? Why doesn’t he know the cause of his sadness? What guesses do Solanio and Salerio have about the causes of his depression? What lifts his depression?


Someone please come and help me out.

Thank you so much