  The vector manifestation (VM) was proposed as a novel manifestation of chiral
symmetry in which the massless vector meson becomes the chiral partner of pion.
In this write-up, I briefly summarize the following main ingredients to
formulate the VM in hot and/or dense matter: Effective field theory (EFT) based
on the hidden local symmetry; Wilsonian matching between the EFT and QCD;
Intrinsic thermal and/or dense effects.
