The Secret of The Family of Muhamad a.s

know that we have been informed from Muhammad son of Al Hassan Al Saffar that Al Sadiq (PBUH) said: (Verily, our matter is the truth, and the truth of the truth, and it is the apparent, and the inner of the apparent, and the inner of the inner, and it is the secret, and the secret of the secret, and the secret that is safeguarded with a secret, and a secret that is masked by a secret), and from him (PBUH): (Our matter is a safeguarded secret, and a secret that is not benefited except by a secret, and a secret upon a secret, and a secret masked with a secret).

So what do the two Hadiths mean? And what is their interpretation? And where is their place in the book of Allah?