festival in Rio

I've just seen the photos of my friend who told me about his feelings when he was in Brazil, at festival in Rio.
Cool!
I remember when i was at the Festival in Russia when i was a little boy.
This holiday was in view of that the winter was end and the spring began.
I was small that is why i felt more, than understood.
I have been surprised by the mood which reigned around. All people were happy as they were in paradise.I didn't understand why they were so happy.
Many years have passed since then, but this memory about happy atmosphere around remain.