Upani adic seers generally explain these ideas on three levels - dhidaivika dhibhautika and dhy tmika or waking state, dream state and deep sleep state. According to philosophical point of view the universe originates from Supreme Being. The third way of interpretation takes help of similes and explains the origin of the world. Now let us take a closer look at these three interpretations regarding the origin of the universe. Just as a physicist would explain the nature of the world with the help of physics, the Upani ads, give a philosophical interpretation .
Upani ad means the secret knowledge which has all the while philosophical bearing.
Therefore, the philosophical interpretation is taken first. The major Upani ads have mainly accepted the lord in an unmanifested form, still the superimposition of emotions takes place. Regarding the creation, Upani ads have accepted two processes, viz. At some places the thinking process is introduced before the actual creation starts. The verb used aik ata is very significant.