Cheruvim at the Gate to Gan Eden

B"H

It must have been in a certain Midrash or in one of the ZOHAR editions where I once read that the Cheruvim guard the entrance to Gan Eden (Paradise). When a Jew dies and his soul goes up, he may get to the entrance of Gan Eden where he has to pass the Cheruvim. Those angels may have children's faces but are actually the "Angels of Destruction". 

What do you do in order to pass those Cheruvim ?

It doesn't matter how important you were in this world and how much money you had. Those angels look into your soul and let you in according to what they see.