When the tine of death arrived for the foolish Ajamila, he began thinking exclusively of his son Narayana. The highest perfection of human life, achieved either by complete knowledge of matter and spirit, by acquirement of mystic powers,
This ISKCON preaching slide show from the 70s A Fish is Just A Fish is very famous. It is a powerful preaching message, maybe a little dated now. It is based on Srila Prabhupada's analogy of a fish out of water.