Alf Slegers does not imagine, he wants to understand. Imagining suggests that you know, understanding is wanting to know.
He is always looking to make his work more complex and, in the end, always comes back to the basics. In the basis there is something that can be compared to the inscrutable part of the universe, something we know / feel but cannot perceive.

Slegers needs to spend a long time revolving around a work to find out what it means to him, whether it is important, but also to find out why he rejects certain steps. In a way, he works like a scientist, in that he also uses ingredients that he thinks could have valuable effects in certain proportions or on a certain scale.