I think happiness is both intangible and indefinable. It means something different to each of us. Some equate happiness with success. What does success look like? Some equate happiness with love, or belonging. I am happy and it comes from being comfortable with who I am. I'm kind, but I can be a jerk. I'm compassionate, but can be thoughtless. I'm independent, but sometimes just want someone else to tell me things will be okay. In short, for all my positive qualities, there are things I'm less good at - and I'm accepting of that fact.
My favourite poem is called The Orange, by Wendy Cope. It sums up what happiness means to me:
At lunchtime I bought a huge orange—
The size of it made us all laugh.
I peeled it and shared it with Robert and Dave—
They got quarters and I had a half.
And that orange, it made me so happy,
As ordinary things often do
Just lately. The shopping. A walk in the park.
This is peace and contentment. It's new.
The rest of the day was quite easy.
I did all the jobs on my list
And enjoyed them and had some time over.
I love you. I'm glad I exist.