Concept of heaven

The idea of Heaven exists in almost every mighty religion and maximum person on earth believe in an abstract model of world after death.  As per my view this is because as many questions are still unanswered in front of society like:

Why some person born with silver spoon and other born with debt.

Why any person born in specific gender (including third gender)

Why baby born with permanent disability.

These are still unaware areas of us and don't know any theory of science to define this concept.

Hence this is major curiosity all over the world since age of civilization, Here religion provide us a strong view define Heaven in very powerful manner.

In words of Swami Vivekananda:

No one is born into a religion, but each one is born for a religion.

There are four general types of men—the rational, the emotional, the mystical, and the worker. For each of these we must provide suitable forms of worship. There comes the rational man, who says, "I care not for this form of worship. Give me the philosophical, the rational—that I can appreciate." So for the rational man is the rational philosophic worship.

There comes the worker. He says, "I care not for the worship of the philosopher. Give me work to do for my fellow men." So for him is provided work as the path of worship. As for the mystical and the emotional, we have their respective modes of devotion. All these men have, in religion, the elements of their faith.

Hindu mythology considers Heaven as Svarga and it fully depend on individual’s Karma to illegible for his/her ticket to heaven. Rebirth is another topic which is full mixed with this concept. Soul is again subjected to rebirth in different living forms according to its karma. This cycle can be broken after a soul achieves Moksha or Nirvana. 

 It is child's talk that a man dies and goes to heaven. We never come nor go. We are where we are. All the souls that have been, are, and will be, are on one geometrical point.

 Religion is not a thing of imagination but of direct perception. He who has seen even a single spirit is greater than many a book-learned Pandit.

 In the domain of true religion, book-learning has no right to enter.

Any sect that may help you to realise God is welcome. Religion is the realising of God

 When the real history of India will be unearthed, it will be proved that, as in matters of religion, so in fine arts, India is the primal Guru of the whole world.

As Buddhism:

Those who accumulate good karma may be reborn in one of them. However, their stay in Heaven is not eternal—eventually they will use up their good karma and will undergo rebirth into another realm, as a human, animal or other being. Because Heaven is temporary and part of samsara, Buddhists focus more on escaping the cycle of rebirth and reaching enlightenment (nirvana). Nirvana is not a heaven but a mental state.

You wrote in Hinduism eating meat will lead you to hell: I don’t know where you read this, in which scriptures or book. I don’t find this content in any books written by me. This is one of the silly thinks in north India especially only in upper caste (Brahmins) as eating meat is not their practice.

India is a peninsula surrounded by sea three sides and eating fish is daily activity. How can you reject those persons for illegibility of Heaven? Also almost every castes in India excluding some so called Brahmin eating non vegetarian food.  Even some Brahmins like Bengal, Punjabi and those living in valleys of Himalayans also eat mean usually.

I think you must mention some references and share links as knowledge sources of writing.