Abu Hamid al-Ghazālī,
Al-Ghazali letter to Qazis of Maghrib-i-Aqsa
“ If you wish to know Allah, then know that the heart of man is the mirror of the universe. If you want to know Allah, then you must look into your own heart. The guide that will conduct you to your path is there, it is a still, small voice, that ever bids you to reject evil and choose good. It is the heart that promises freedom from hasty judgment and friendship towards men and obedience to Allah. ”
