Guess my Riddle...

In the class of Literature, we were asked to write a poem about what LOVE is. Here is my poem:

Have you ever felt it?
Have you seen it?
Have you heard about it?

It is a hug,
It is a kiss,
It is a message,
It is everything that make us happy.

You can feel it everyday,
You can´t buy it,
You can´t sell it.
It is easy to get it,
If you are ready.

We all know what it is,
Don´t you?
It starts with
the twelfth letter of the alphabet,
and it ends with the fifth.