Heaven is not something that happens after death! It is something you create within yourself due through the thoughts, words and actions that you choose and the repercussions they carry (known in Yoga as Karma).
It isn’t always easy; as humans w are conditioned to be highly affected by external circumstances, and therefore we are brought into suffering that many times is not even our own.
By feeding ourselves healthy and uplifting information and people, we create an environment in which there is less suffering and more reason to smile. That is heaven, having that daily reason to smile to feeling good inside, regardless of the circumstances outside.
Everyday as we choose to be grateful, we elevate others and grow to be better versions of ourselves, we are creating our state of heaven, a state in which we elevate our vibration and follow the flow of the happening of life with a smile on our face and love in our hearts.