What is meaning of life?

that we are alive.

That all depends on individual perception.

IMO it doesn't have a meaning, it's individuals who give their lives meaning based on their ideology and circumstances in life.

Life has no intrinsic meaning, it is simply life. Since such an idea is unsatisfying most of us, in one way or another, try to add meaning and purpose. So, as Echooos and Fortis have both just said, it means whatever you want it to mean.

Does life have to have meaning? For most of the life of this earth, life just was. Not much intelligence or end product. Evolution has in turns made mosses, algae, sharks, reptiles and primates the most successful species. (Actually, everyone forgets the bacteria, THE most successful organisms of all).

When man puts an end to his own existence, or some cosmic impact, global pandemic or supervolcano explosion does it for him, another species will take the ascendency.

Life just is.

Right up until the planet's end.

To quote a well-known popular writer. "Most of the time life just wants to be. Often it doesn't want to be much."

Best question of the day.

Learn all you can, with all that is.

Then take it back to the source.

Your body is a receptacle. Mind is a recording

device. Every moment you exist, be it sleep, coma,

or the wake state. Just make sure you can look in

the mirror January 5th 2017.

To die well. 

(And achieving that is an incredibly complex requirement---it will take you all of your life to do it.)

To find that out.  A life without meaning doesn't mean anything, and has no point. If life has no meaning it has no morality, everything is simply indifference.  It has no absolute truth. 

http://www.reasonablefaith.org/the-absurdity-of-life-without-god

http://www.strangenotions.com/if-atheism-is-true-does-life-still-have-meaning/#

That it is not all about you. Talking to people who have lived long lives, the ones that were happiest, were the ones that shared their lives.

While it is up to each of us to choose what to do with our life, it would be a mistake to exclude the Creator from our deliberations. Actually, many have discovered that real meaning and purpose in life is bound up in a relationship with God.

There is no one answer due to the individualistic nature of an open opportunity life brings.

1-
Everything has a purpose/meaning otherwise it might just as well as not exist.
It can’t be that our purpose is merely to serve as workers and consumers for
commercial enterprises and have our numbers being regulated by governments to
suit those enterprises.

2- If that
very fundamental question about our purpose had been answerable by science we'd
have one definitive answer or at worst just a few competing ones. Since it is
outside the scope and instrumentation of science, we have to look elsewhere. The
answers elsewhere are many and quite varied.

3-
According to The Hitchhiker's Guide to the Galaxy, Deep Thought, the
supercomputer was set the task to find the answer to life, the universe and
everything and after 7½ million years of computing and checking it found the
answer to be 42.

4- That's
not the only puzzling answer though. The American professor of mathematics in
the video below has issues with another answer to the meaning/purpose of life
question which he found in a book that claims to be a guide to a good ethical
life. He found himself, a staunch atheist, arguing with a god he didn't believe
existed.

5- Another
person, an Australian university student, in the second video below, had it
drummed into him as a child that when we die we are just worm food, period. He
later thought if there was nothing more to life than to blossom and die like a
flower then he need not bother to do anything, really.