I present a novel approach to modal imagination as a means of knowing metaphysical possibilities. Hume calls the link between imagining and possibility an ‘established maxim’. I ask: what makes it seem so natural to use imagination as a guide to modality? (1.) I draw some lessons on my motivational question from the current debate. (2.) I develop my answer: we use imagination to creatively simulate solutions to feasibility issues. (2.1.) To corroborate my answer, I consider everyday feasibility issues. (2.2.) I then extend the account to more remote feasibility issues. (2.3.) I point out a special connection between imagination and creativity (3.) I show how the feasibility approach bears on issues of metaphysical possibility. (3.1.) I outline how imagination allows to retrieve and test modal constraints. (3.2.) I support my argument by examples from the philosophical debate. (3.3.) I answer my original motivational question. (4.) I address objections.