It started with a stylised Arabic 'Allah':

stylised logo: Allah in Arabic

.

After duplicating, flipping horizontally and then combining:

reflection: white
.

Then, duplicating that and placing it underneath, and putting in extra bars to highlight a rough diamond outline:

reflection: white2

.

After which the form is duplicated and placed in a rigid grid formation, filling the spaces with smaller versions of the same form:

concept piece (tesselation): white (reflected from Allah)