I love to play the piano 
That is amazing. You picked from the Italian invention by Bartolomeo Cristofori 
But the problem is I don't know how to play and I wish to
Do you know the basic of the keyboard, which is a row of keys (small levers) that the performer presses down or strikes with the fingers and thumbs of both hands to cause the hammers to strike the strings.
I started the basics when I was young by learning the notes and keys
Then you can build your way around it. I do not think it is a big deal. Just a protective wooden case surrounding the soundboard and metal strings
I did not follow through my lessons
It mean you need to take your class on learning a pianoforte again. pianoforte is the long word for Piano