Despite knowing and seeing through the senses, if one remains free from attachment-abhorrence, it is called knowledge beyond the senses (atindriya-gnan). But if one has attachment-abhorrence, then one is seeing and knowing through the knowledge of the senses (indriya-gnan).
The whole world is indeed trapped by misery. What is the misery about? Due to ignorance of one’s own Real Self (agnanta). Due to ignorance of one’s own Real Self (agnanta), attachment-abhorrence (raag-dwesh) keeps on occuring, which leads to this misery. Only through Gnan [Knowledge of the Real Self] can one prevail in a misery-free state. There is no other solution at all.
