Every being having the mark of the masculine sex should be known to be of Ishana, while every being with the mark of the feminine sex should be known as belonging to Uma. This universt of mobile and immobile crcatures is pervaded by two forms (viz., male and female).
पुंलिङ्गं सर्वमीशानं स्रीलिङ्गं विद्धि चाप्युमाम्। द्वाभ्यां तनुभ्यां व्याप्तं हि चराचरमिदं जगत्॥