You can only raise money by pitching the “Dream” or by selling “Traction”. So either bootstrap your startup, or raise money in the early “dream” (no code, no plan, just a dream) phase or in the “traction” (the model is working) phase of your business.
(1) Cf. The real difference between funding rounds.
(2) Re. You can only raise money by pitching the “Dream”— see Startup fundraising: Finding true believers vs. convincing skeptics.