In this paper I have discussed a new method of enabling a cryptocurrency wallet user to define his own unforgettable seed phrase. An algorithm named SEEPT (Seed Phrase Transformation) is provided and illustrated with a real user defined seed phrase as input and a BIP39 standard seed phrase generated as output through cryptographic transformations. Discussed in detail is how an unforgettable seed phrase can be generatedfrom a set of names or words that are specific to a user’s personal life. Explained in detail as to how a wallet user can reconstruct his seed phrase on demand without depending on any storage, thereby relieving him from the burden of memorizing it frequently or storing it digitally on a computer hardware or physically on a paper or metal media.