There is no physical heaven or hell. Heaven and Hell could be thought of as states of mind that one chooses for himself during his lifetime. Choose a life based on principles that are anti-life (drugs, murder, theft, communism, etc) and you will certainly be in hell before you die. Choose principles that are directed toward life (life, liberty, pursuit of happiness, productivity, honesty, etc) and you will certainly be in heaven long before your death.
Think of heaven as the consequence of making choices that are integrated with things that you value and make you happy. And hell would the be consequence of making choices that contradict your values and make you unhappy.
With this answer, you will no only see heaven before you die but you will be able to enjoy it with those you love here on earth.