The universe has a cause of its existence. In fact, I think that it can be plausibly argued that the cause of the universe must be a personal Creator. For how else could a temporal effect arise from an eternal cause? If the cause were simply a mechanically operating set of necessary and sufficient conditions existing from eternity, then why would not the effect also exist from eternity? For example, if the cause of water's being frozen is the temperature's being below zero degrees, then if the temperature were below zero degrees from eternity, then any water present would be frozen from eternity. The only way to have an eternal cause but a temporal effect would seem to be if the cause is a personal agent who freely chooses to create an effect in time. For example, a man sitting from eternity may will to stand up; hence, a temporal effect may arise from an eternally existing agent. Indeed, the agent may will from eternity to create a temporal effect, so that no change in the agent need be conceived. Thus, we are brought not merely to the first cause of the universe, but to its personal Creator.

Given the intuitively obvious principle that whatever begins to exist has a cause of its existence, we have been led to conclude that the universe has a cause of its existence. On the basis of our argument, this cause would have to be uncaused, eternal, changeless, timeless, and immaterial. Moreover, it would have to be a personal agent who freely elects to create an effect in time. Therefore, on the basis of the kalam cosmological argument, I conclude that it is rational to believe that God exists.

http://www.reasonablefaith.org/the-existence-of-god-and-the-beginning-of-the-universe#ixzz3ocCaVEEy

"Don't let the cosmologists try to kid you on this one. They have not got a clue either-despite the fact that they are doing a pretty good job of convincing themselves and others that this is really not a problem. 'In the beginning,' they will say, 'there was nothing-no time, space, matter or energy. Then there was a quantum fluctuation from which .' Whoa! Stop right there. You see what I mean? First there is nothing, then there is something. And the cosmologists try to bridge the two with a quantum flutter, a tremor of uncertainty that sparks it all off. Then they are away and before you know it, they have pulled a hundred billion galaxies out of their quantum hats."

David Darling

Astronomer

http://everythingforever.com/ywexist-p2.htm

https://www.youtube.com/watch?v=zORUUqJd81M

Dear Md Asraful Haque, 

It is unlikely that the universe has a purpose. Perhaps you were hoping for a more unequivocal opinion. While in biology, chemistry, physics, geology, astronomy or cosmology, there is no direct evidence of the cause of everything, science will never be able to clearly demonstrate that it does not exist. As in a slightly different context, Carl Sagan once said: the absence of evidence is not evidence of absence.

In the end, even if the universe has a purpose, we play it's not a major role. As inhabitants of the planet we are quite insignificant. Life on Earth will end, as it may have happened on countless planets in the past, and will happen in the future. All the stars and galaxies that we can see, can disappear in an instant, and the universe will continue to exist more or less the same as now. Nature, it seems, is so indifferent as it is unwavering.

Regards, Shafagat

If it don't you certainly can't ask this question. "Cogito ergo sum"

According to "Cogito ergo sum" we cannot doubt of our existence but why?

As we see, science does not offer an explanation of why the universe came into being & why we are included in it. Science cannot be blamed for this because its realm are the objects which are reachable by our senses directly or indirectly. The universe is beyond that & our limited knowledge cannot even account for many mystries in our "tiny" earth. I think that religion is more fit to give the answer.

Thank you all for your valuable comments. I am not getting the point of George Stoica. However we may conclude that science can't explain everything.

@George Stoica,

You are absolutely right sir.

The universe has a cause of its existence. In fact, I think that it can be plausibly argued that the cause of the universe must be a personal Creator. For how else could a temporal effect arise from an eternal cause? If the cause were simply a mechanically operating set of necessary and sufficient conditions existing from eternity, then why would not the effect also exist from eternity? For example, if the cause of water's being frozen is the temperature's being below zero degrees, then if the temperature were below zero degrees from eternity, then any water present would be frozen from eternity. The only way to have an eternal cause but a temporal effect would seem to be if the cause is a personal agent who freely chooses to create an effect in time. For example, a man sitting from eternity may will to stand up; hence, a temporal effect may arise from an eternally existing agent. Indeed, the agent may will from eternity to create a temporal effect, so that no change in the agent need be conceived. Thus, we are brought not merely to the first cause of the universe, but to its personal Creator.

Given the intuitively obvious principle that whatever begins to exist has a cause of its existence, we have been led to conclude that the universe has a cause of its existence. On the basis of our argument, this cause would have to be uncaused, eternal, changeless, timeless, and immaterial. Moreover, it would have to be a personal agent who freely elects to create an effect in time. Therefore, on the basis of the kalam cosmological argument, I conclude that it is rational to believe that God exists.

http://www.reasonablefaith.org/the-existence-of-god-and-the-beginning-of-the-universe#ixzz3ocCaVEEy

Why does the universe exist and why are we in it? It is a very difficult question to answer. If we go by Science and Astrophysics, they told us by their way that the universe exist for the life and some physical phenomena and here, we are for living. If we go by the Religion, then it told us that it was created by God and we are here for good works..So a lots of hypotheses are there and for me, I feel, the Universe exist for Us to do our best works for the entire LIVING AND NONLIVING THINGS.

The universe exists because we perceive it (someone add: "...and we are in it to perceive it"), otherwise there is "nothing".

Parmenides said "non-being is not, and so there is nothing."