The author after clarifying the physical implications of the imaginary time approach and the reversible real time approach goes on to explain how they differ from the progressive time which is experienced by all macroscopic systems. He proposes that the progressive nature of time is a direct result of the increase in the entropy at the sub-quantum level. According to him just as the interactions with the vacuum fluctuations create the confined helical wave (CH wave) which is the basic structure of a particle, a small part of the energy gets converted into its jiggling motion. It is proposed that this random motion arising from the absorption of the vacuum energy contributes to infinitesimal increase in the rest mass which results in the increase in entropy right at the level of the elementary particle. He calls the process by which the particles absorb energy from vacuum “the vean process”. He proposes that this increase in entropy at the level of the structure of the elementary particles results in time acquiring its progressive nature. With this interpretation of the progressive nature of time, the problem of the collapse of wave function gets resolved without invoking the presence of a conscious observer. Even the process of entanglement appears to have space-time limitations. He suggests that the existence of gravitational field and expansion of the universe may be direct outcome of the proposed vean process.