Peace,
Yes, i understand, and i had the same dillema too. But you have to understand that it is the higher thinking that will cause people to as much as they can to bring 'heaven' to everybody. You say you want a verse that tell you directly that heaven can be attained here on earth, then first you have to understand that heaven is not a physical place, but a state of mind, that will be continued in the next life. So if you take of your glasses of 'heaven is only in the next life', then you will see that the Quran says as much about Djenna in this life as in the next. Most people in the western world are trapped in their illusion, their hell, that they don't really care about the starving people in this world. Their Jahim=barriere stops them from really caring and helping. You have to understand is that you can be in the most miserable place, and still be in the heaven of your mind, even though there is so much misery in this world, i feel the bliss of accepting the truth and reality. That is heaven, accepting the truth and knowing what to do with reality. Most people in this world are stuck in their own made hell of illusions, that will stop them from growing their selfs(nafs). Most western people know there are people starving every day on the other side of the earth, but still they keep their money for themselves, still don't help the people over there, because their Jahim=barriere in thinking causes them not to make the right decisions. Imagine if people would save money for a while and then go to Africa themselves to help people over there, not just some little groups, imagine that every person on earth would feel this responsibility, then the problem would be solved. A lot of problems would be solved if it was handled like this, but people are stuck in their illusion they live now, the illusion of the importants of work, of going on holiday and so on. They know they're wrong, so this knowing they're wrong will stop them from growing, and by thus creating hell for others. If people would understand reality and the truth, that they're created, that this life is real, because most people live in doubt whole their lives, then they would understand that just taking action is possible for them, most people live in the illusion that they can't help those people, they say that to themselves.
If nobody had listened to Hitler or other leaders because they would understand reality, then there wouldn't be wars. Because then we wouldn't create hells that are results of our inner hells, that fool themselves we have to listen to leaders, that it is a 'duty' to fight. Imagine if all the people would have stopped listening to Stalin, and would have looked at him, that they aren't scared anymore of him, when people realise that we give power to such people, that we can brake the cycle, then there would be more peace. It is because we don't act to serve real freedom, to give heaven to everybody, that will stop us also from attaining the higher level, because we know it is the truth.
Then we arrive again on the starving people, on the people who are innocent victims of war or terror. Why are they the causulties of other peoples hells, of other peoples illusions? For a part they themselves are also stuck in their personal illusion, what keeps them from making the right decisions and actions. Don't jump yet, let me finish. If you understand reality, how it is structered and how its laws are and so on, it is like you trying to eat soup with a fork, because you don't understand the reality of the soup, how it is structered, then your stuck behind a barriere of growth and taking the right actions that will cause to give the right fruits in life. Most people on earth live like this, stuck in their man-made traditions and understandings of this world, these are all illusions, and they know deep inside that is true, but still they keep feeding their hell. So they are victims of the western people's hells, that don't give them the help the western world can really offer. And they are victims of their own made hells, their own made illusions. Put these together and we see the results on tv everyday. Everybody is eating life with a fork instead of a spoon, and will never grasp the real possibilities in this life and the next. How you believe this life to be, will cause you to act and behave in a certain way in this life, so if you believe in illusions, your actions will also be like illusions, because you will never understand the laws of cause and action God created, so people surrender themselves mostly to somebody else's illusion and let them be ruled by them(the people in politics, husband, village traditions, religion traditions and so on). God says in the Quran, that if people haven't reached the message, so they can brake away from their illusions, then they're not responsible, and will attain the higher thinking in the next life, that will take away all the grief they had in this life. But this shows that people how do have the revelation can reach a partial heaven, we can in this life reach a higher thinking that will move on to the next life. And this higher thinking will give results of bliss, because the truth is just pure bliss to me. It is sad still that kids are the victims of other people's illusions, but this will be forgotten in the next creation.
But to attain this understanding, you have to be in an enviroment that allows that. So on earth we can only walk a little part of the stairs to the higher thinking. Only in the next life we can freely walk the stairs up. But you have to understand that it is our actions that will create a heaven and hell, not because God creates a mythological place where people burn or drink from rivers of milk. It is our behaviour in the next world that will make it a heaven for everybody. So this also applies to this life as well. So this life is not a test, it is a place where people must get rid of their illusions, otherwise they will take those with them to the next life. The people who didn't had no chance to develop their selfs, will not be held accountable for it, till they reached 40. God will not jduge people on that, and will them allow to leave their self-made hells, in the next life. But i believe God gives everybody the chance in their life, where ever you live, to reach a higher understanding, that will create results that are compared to rivers of milk.
When we die our conciousness will return to the Quantum field, this is even proven trough research, and will be thus confronted with the truths that are stored in it. This will be like a confrontation with God, a 'meeting' with Him. God made a law that only by maintaining your illusions, your hells, your denials of the truth(kufr), that when we are created again after the new big-bang, they will continue to be stuck in their illusions and will not get out of it unless God wants to. But the persons who have reached a higher acceptance by acknowledging the truth, and the most important truths are believing in one God and live righteous(truth that coincides with your conciousness) and that you will be confronted with yourself(the last Day), are to be allowed to have a higher level in the next creation. People who develop an even higher thinking(Djenna=garden we can't see, because it is in our thinking) then they will have a higher level in the next life then the people who only had the 3 basic truth's, as told in sura 55. Then it is the higher understanding that will create ultimate bliss for everybody, while a part will still be stuck in their illusions, but will not be able to let their hell's their illusions, touch other people. There will a barriere, that will not give them any chance of effecting the next life, as people who have the higher understanding will have the power.
I recommend also you to read my article on the afterlife
http//www.free-minds.org/forum/index.php?topic=5417.0
As it will also give some insights how i think like i do. I'm still putting all the things together, also the question you gave me will be put into it. These are hard questions, but the Quran still gives me answers that coincides with what i say above. In time i will finish an article that eloborates on all these subjects.
Peace