Srimad Bhagavatam Canto 02, Chapter 02, Text 08

SB 2.2.8

kecit sva-dehantar-hrdayavakase
pradesa-matram purusam vasantam
catur-bhujam kañja-rathanga-sankha-
gada-dharam dharanaya smaranti
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Others conceive of the Personality of Godhead residing within the body in the region of the heart and measuring only eight inches, with four hands carrying a lotus, a wheel of a chariot, a conchshell and a club respectively.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
The all-pervading Personality of Godhead resides as Paramatma in the heart of each and every living entity. The measurement of the localized Personality of Godhead is estimated to expand from the ring finger to the end of the thumb, more or less eight inches. The form of the Lord described in this verse with distribution of different symbols — beginning from the lower right hand up and down to the lower left hand with lotus, wheel of a chariot, conchshell and club respectively — is called Janardana, or the plenary portion of the Lord who controls the general mass. There are many other forms of the Lord with varied situations of the symbols of lotus, conchshell, etc., and they are differently known as Purusottama, Acyuta, Narasimha, Trivikrama, Hrsikesa, Kesava, Madhava, Aniruddha, Pradyumna, Sankarsana, Sridhara, Vasudeva, Damodara, Janardana, Narayana, Hari, Padmanabha, Vamana, Madhusudana, Govinda, Krsna, Visnu-murti, Adhoksaja and Upendra. These twenty-four forms of the localized Personality of Godhead are worshiped in different parts of the planetary system, and in each system there is an incarnation of the Lord having a different Vaikuntha planet in the spiritual sky, which is called the paravyoma. There are many other hundreds and scores of different forms of the Lord, and each and every one of them has a particular planet in the spiritual sky, of which this material sky is only a fragmental offshoot. The Lord exists as purusa, or the male enjoyer, although there is no comparing Him to any male form in the material world. But all such forms are advaita, nondifferent from one another, and each of them is eternally young. The young Lord with four hands is nicely decorated, as described below.
Srimad Bhagavatam Canto 02, Chapter 02, Text 07
Srimad Bhagavatam Canto 02, Chapter 02, Text 09