The Buddha taught that whatever we have done to develop and support qualities of goodness will bring about feelings of propensities and progress.Having done this,one can say that one will "go to a good destination" or in simple words "go to heaven
"Heaven" here means a world where one is in a positive state of mind.A world where one is in a positive state of mind which refers to a mind that is free from irritations and unwholesome attitudes,such as greed,hatred and delusion - a mind that enables us to experience happiness.
Everything depends on us as we are not perfect already from birth.All that one have accomplished is only possible because we have gradually built it up an understanding of ourselves in a broader perspective, sincerely and correctly. Then we can find that we are heading towards a good destination.