My personal ghost

My head is such a striking place,
 I do have there an endless space.
 In that space there's a cosy nook
 Where lives one funny noisy spook.

 You're sitting in my head, oh!
 When have you made this your home?
 Or am I going mad?
 So if I'm going mad, hey-hey,
 I really would be glad...
 Be glad to go mad this way!

 I always come to him when sad.
 He tells me what is good, what's bad.
 He sings for me his lovely songs.
 I feel that I'm not alone.

 You're sitting in my head, oh!
 When have you made this your home?
 Or am I going mad?
 So if I'm going mad, hey-hey,
 I really would be glad...
 Be glad to go mad this way!

 Is he an angel or a ghost?
 I'll never know-there's no signpost.
 But I'm afraid of loosing him -
 My only friend, my dear whim.

 You're sitting in my head, oh!
 When have you made this your home?
 Or am I going mad?
 So if I'm going mad, hey-hey,
 I really would be glad...
 Be glad to go mad this way!