Window in my heart

There is a window in my heart
That I could not close
And too big to be ignored
The name of this window is happiness

Most people just enter straight through this window
And they never close it or make it smaller
They make it bigger so they can pass
So they can fit

Then, my heart gets full of joy
I rejoice due the people that come and stay
My heart gets bigger and brighter
And the spaces and hollows get filled and smaller

If I could tell you something right now...
Don't close the windows of your heart