Like the sky is dark but the stars in the sky are the points of light. We think only that these stars are objects, but science says no, it is the space between the stars that is full of energy like a thick ocean, that is dark energy. You do not see it but the energy between the stars is what they call dark energy.
That is exactly what Shiva Tatva is. Our ancient people knew this and called it Shiva Tatva – Sarvam Sivamayam Jagat. The whole universe is held by Shiva Tatva.