An experimental index of the heart: or Self--knowledge [electronic resource] : In which (as in a looking-glasse) the civillest of men may see what need they have of a redeemer; and that it most deeply concerns them with all speed, to sue out their pardon in Christ, and to rely wholly and only upon free-grace, for pardon and salvation; except they prefer an everlasting furnace of fire and brimstone in hell, before an eternal weight of superabundant glory in Heaven, as all (most sottishly) do, that by sinne and Satan are bewitched. Drawn up and published for the good of all, / By R. Younge of Roxwell in Essex, florilegus. ; Add this as a third part to the trial of true wisdom, and those three fundamental principles of Christian religion, intituled, A short and sure way to grace and slavation.