The Vedic scripture teach us that God even lives within the atom.

Krsna as His expansion Visnu/Narayana (Visnu-tattva) accompany the individual jiva-souls (the marginal living entities) to the material creation, and even lives within every atom in the temporary decaying material creation that is a 1/4 of the Spiritual Sky.

The other 3/4 of the Spiritual Sky is the perpetual "active" realm of Vaikuntha and Goloka-Vrindavana where Visnu and Krsna have their eternal pastimes.

"Life is everywhere" (Sarva-gata)

Life is "active" in a material bodily vessel in the species of life in the material creation, and "inactive" or dormant within the atom or in the impersonal Brahmajyoti or Brahman.

Tamala Krsna - "Srila Prabhupada, someone asked a question the other day about the atom which I couldn’t give the answer to. His question is that if we say that within the atom the living entity, the jiva, is present, and life symptoms means six symptoms of birth, growth...."

Srila Prabhupada - "That’s all right. Their life symptoms has not yet developed but they are there."

Jayadvaita - "Potential."

Srila Prabhupada - "Yes."

Tamala Krsna - "His question was sort of a dual question. At what time, or what? Just like at the time of disintegration of this body, does the living entity leave this material body when it disintegrates? So does the atomic body also disintegrate when the living entity leaves it and moves to a higher body?"

Srila Prabhupada - "Atomic body? Atomic body means material body. Unless you are free from this material body, the atomic body will go on with you. That means unless you are mukta, the atomic body will go on. Mind, intelligence, ego — they are also atomic, finer atomic body."

Tamala Krsna - "But within each atom the living entity is present?"

Srila Prabhupada - "Yes, God is present; therefore living entity is present."

Tamala Krsna - "So the living entity is present within the atom just as I am present within this body. When I leave this body, my body breaks apart."

Srila Prabhupada - "Yes, you leave this body, enter another body."

Tamala Krsna - "Right."

Srila Prabhupada - "By nature’s law."

Tamala Krsna - "And when I leave this body, the body breaks apart."

Srila Prabhupada - "Eh?"

Tamala Krsna - "When I leave this body, the body is."

Srila Prabhupada - "The body is already atomic combination."

Tamala Krsna - "Yes."

Srila Prabhupada - "So it remains atomic combination. You leave the body."

Tamala Krsna - "Yes, it remains."

Srila Prabhupada - "You leave the house. That does not mean the house is finished."

Tamala Krsna - "Right, I can understand that."

Hamsaduta - "He’s asking that if the soul leaves the atomic particle, then does the particle break apart. Isn’t it?"

Srila Prabhupada - "No, no. You have not left atomic particle."

Tamala Krsna - "No, but you were saying that within the atom there’s also a living entity. So when that living entity leaves the atomic particle does the particle break apart? Or doesn’t it? I mean what?"

Srila Prabhupada - "Just try to understand. From the sastra, you understand that andantara-stham God lives within the atom."

Tamala Krsna - "Yes."

Srila Prabhupada - "And when God is there, the living entity is also there. This much you try to understand. Because God and living entity, they remain together, as two friends. God is trying to save this fallen friend. That is the information from Upanisad. So when God is there, the living entity is also there." (Morning Walk, April 4, 1975, Mayapur)

Kṣīrodakaśāyī Visnu, is the all-pervading Supersoul in all the universes in heart of every living being and is known as Paramātmā. He is also present even within each single atom in all the material universes. 

The real object of meditation in Yoga is to meditate on Paramātmā. 

Anyone who knows Him can be liberated from material entanglement. 

In this age of Kali-yuga the only method for self realization is the chanting the various names of God as ISKCON devotees do in the Sankirtan Movement of Lord Caitanya Mahaprabhu by Chanting the Hare Krsna Maha-mantra.