Janardana Sila

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 Janārdana, or the plenary portion of the Lord who controls the general mass.
(SB 2.2.8 purport)

The Supreme Personality of Godhead, Janārdana [Lord Kṛṣṇa], is the form to accept all the results of sacrifice. If He is not satisfied, then one’s labor for advancement is futile. He is the ultimate Self, and therefore one who does not satisfy Him certainly neglects his own interests.
(SB 3.13.13)

janārdana — O chastiser of the enemies (BG 11.51)
janārdana — O maintainer of all living entities. (BG 1.32-35)
janārdanaḥ — the controller of all living being (SB 3.7.35)

The śālagrāma-śilā should be worshiped with tulasī where a sufficient quantity of tulasī leaves are available. Worship of śālagrāma-śilā should be introduced in all ISKCON temples. Śālagrāma-śilā is the form of the Lord’s mercy. To worship the Deity with the sixty-four items mentioned may be a difficult job, but the Lord has become so small that anyone in any temple can carefully handle Deity worship simply by performing the same activities with the śālagrāma-śilā.
(CC Madhya 24.336 purport)