A few provoking relations between dark energy, dark matter and pions

I present three relations, striking with their simplicity and fundamental appearance; the first one connects the Compton wavelength of a pion and dark energy density of the Universe; the second one connects Compton wavelength of a pion and the mass distribution of non-baryonic dark matter in a Galaxy; while the third one relates mass of a pion to fundamental physical constants and cosmological parameters. All these relations are in excellent numerical agreement with observations.