Looks like I still miss something (we've heard that before)

Hint 1 of 8:

The meaning of life is meaningless without the universal sign of knowledge.
A lamp. A kind of genie lamp.

Hint 2 of 8:

Lamp? What lamp?

Hint 3 of 8:

Did you forget the bit about building sand castles? Well, what are you
waiting for, build one.

Hint 4 of 8:

On the beach, of course.

Hint 5 of 8:

That lamp provides no inspiration. Put some light on it.

Hint 6 of 8:

Dry wicks don't burn and no whales beached themselves.

Hint 7 of 8:

Where is the last time you saw a "whale"?

Hint 8 of 8:

You already forgot how surprised you were to see Gammie come out from behind
the counter?