Some religious adherents believe that they will attain the heavenly state upon their death. Some believe that by simply believing in such in enough. Some believe that by sacrificing their life in support of a country or a religion will do it.
There are many beliefs, and they are beliefs, because such and such has not been proven, and that is a problem with the earthly religions of today. Luckily, the ancient teaching of the Hebrew and Aramaic texts of the Bible, the Arabic text of the Quran, the Sanskrit texts of the Upanishads, the Rigveda, and so on, has now been deciphered and the teaching is provable.
All beings live upon the same breath. The breath is the Supreme Spirit Pervading the Universe, and there is no doubt, the breath is God upon the earth. Brahma, the Supreme Absolute, has many names, but is the same.
Here is a verse from the Veda for living with the Holy Being.