This eternal form of Your Lordship gives ever-increasing transcendental pleasure to the devotees, but for the nondevotees this form is very dangerous.” As stated in the Bhagavad-gītā, Kṛṣṇa is very pleasing to the sādhus (paritrāṇāya sādhūnām) (BG 4.8). But this form is very dangerous for the demons because Kṛṣṇa also descends to kill the demons. He is, therefore, simultaneously pleasing to the devotees and dangerous to the demons.
“Our dear lotus-eyed Lord, You are the source of pure goodness. There are many great sages who simply by samādhi, or transcendentally meditating upon Your lotus feet and thus being absorbed in Your thought, have easily transformed the great ocean of nescience created by the material nature into no more than the water in a calf's hoofprint.” The purpose of meditation is to focus the mind upon the Personality of Godhead, beginning from His lotus feet.