Of course a poem is a two-way street. No poem is any good if it doesn't suggest to the reader things from his own mind and recollection that he will read into it and will add to what the poet has suggested. But I do think poetry readings are very important.
The answer to old age is to keep one's mind busy and to go on with one's life as if it were interminable. I always admired Chekhov for building a new house when he was dying of tuberculosis.