God gives his gifts and we receive them with joy. We enjoy them. Our days are also filled with good gifts we might not naturally call good. Pain is good for us if it alerts us to a problem we must correct. Even criticism can cause us to see something about ourselves that needs to change.
Failure can point the way to greater growth.
If we can find purpose in them, even negative things can seem positive. God uses every circumstance, no matter how painful, to strengthen us. We are better people because of what we endure. God does not waste anything, even hardship. Because of this, we can consider it joy, even when tough times come.