In deep meditation, your mind is settled in the Akhman. Sukhamat kam tikam yat tad budh di grai hamati ndriam. The nature of happiness, there it enjoys the ultimate happiness. It is that happiness is available through knowledge. Now what kind of happiness is available to us? One is the worldly kind of happiness we are used to which is born of sense contact. Everything that you see here smells taste, touch or imagine or expect even expectation leads to happiness and expectation of a pleasure. But none of it will be deeply satisfying.