If you manage to get into hypnagogia you might at that point try to passively watch them and cancel trying anything else, you might also try to train yourself to manipulate the imagery in some way, if something like that works you might just get far enough to enter a dream. And SP is most likely involved in WILD but try not to wait for it, you might even start dreaming without feeling prior SP at all.
In case it proves to be a little hard and even case it doesn't you should try to go with some other techinques like DILD and maybe DEILD as well. That way you might have your first lucid earlier and with that probably an earlier WILD as well.