There are different interpretations to what happens to someone who realises God. The experience cannot be described in worldly language, because the tongue refuses to obey and words are insufficient to translate.
Yet, those who experienced it have tried to express the inexpressible to the best of their ability. Dr. Richard Maurice Bucke surveyed the experiences of saints in various religions and summarised the “common denominator” in his book Cosmic Consciousness.
According to him, one observes that this universe is a living spiritual presence and is not made of dead material. One finds oneself eternal as a soul and the fear of death and sin goes for ever. One acquires enormously great capacity both for learning and teaching. He has exceptionally good health and there is extra charm in his personality.
At the time of “spiritual climax”, the experience of death and immediate resurrection is so sudden that you do not know what is happening and the accompanied feeling of bliss is so unique that it is indescribable. You feel that you have entered a new and unknown world, entirely different from the old world.
There is indifference and unconcern to worldliness. There is a sudden feeling that everything is happening according to some divine plan for the good of everyone, much in agreement with the teleology of Max Planck and towards a predefined divine goal: Since universe is God and God is universe, consciousness of the cosmos means God-Realisation in which one finds ineffable joy, freedom and peace.
In most cases, the chosen form of God appears in trance or vision, such as Krishna, Jesus etc.
According to Astavakra Samhita, “The wise who are free from mental projections, unbound, and of unfettered intellect sometimes sport in the midst of great enjoyments, and sometimes retire into mountain caves.”
As per Vedanta, “the wise may continue to work in material world according to his former nature or may give up working completely; he is free in this matter.”