The time in which we feel "because we are alive" is a void in our lives.

In today's peaceful world, being alive is too natural to feel, and death is also avoided and kept away from our lives.

Therefore, we have little time to actually feel alive, and even less time to think about death.

Joka (everlasting flower) is a flower that does not wither and blooms forever.  But at the end of the time we live, there is always death.

Because we are alive, we move forward in the midst of uncertainty. And because there is death, we can think about what we need to do.

By contrasting the beauty of everlasting flowers with that of fresh flowers, this vase creates a time when we can feel "precisely because we are alive."