Whatever your belief in angels might be, the most important thing is to remember that there is a Creator of all of us who wants a direct and personal relationship with us ,without any intermediaries! 

There are several fascinating explanations regarding the meaning of Lag b'Omer and why 'holy fires' play such a prominent role.

In giving us the Torah in the desert, God was freeing us not just from the reality of slavery, but also from the mentality of slavery.