The secret of religiousness

Someone asked Hassan Al Basri(rh): “What is the secret of your religiousness?”

He replied :

“I understood 4 things:

1. I understood that my rizq cannot be taken by anyone, so my heart became content.
2. I understood that no one can do my actions (worship) for me, so I started doing them myself.
3. I understood that Allah is watching me, so I became ashamed to do wrong.
4. I understood that death is waiting for me, so I started to prepare for my meeting with Allah.”