Chasidut zu Schemot 24:17

Exodus 24,17. “and the appearance of G’d’s glory was like ‎a consuming fire on the top of the Mountain.” When man ‎serves the Lord through observing the commandments and ‎studying His Torah, he provides the Lord with a great deal of ‎satisfaction. If he wishes to know if his service was really pleasing ‎to the Lord, the test is to look into his own heart. If he notices ‎that his own heart is as if burning with fire in his enthusiasm and ‎that whenever he performs acts of service to the Lord it ‎thoroughly warms his heart and he himself experiences a ‎profound satisfaction and joy at serving his Creator, this is proof ‎that he receives a heavenly assist to continue on the path he has ‎chosen. The meaning of the words ‎ומראה כבד ה'‏‎ therefore is not a ‎description of what was visible on the mountain but rather that ‎G’d’s sign of showing His servants that their service to Him was ‎appreciated was that the person concerned experienced within ‎himself a reflection of what the Jewish people experienced on the ‎day prior to the revelation when they looked at the top of the ‎mountain. When his own heart seems to him to be on “fire,” and ‎he is close to ecstasy, this is proof that G’d takes pleasure in his ‎efforts.‎