experienced solely due to the Lord's will. When these feelings arise spontaneously, one achieves the stage of atma-nivedana (surrender of the soul).

What occurs without surrender

"One unable to accept the six limbs of surrender is a prisoner of false ego who always thinks in terms of 'me' and 'mine'. He proudly declares, 'I am the master here. This household and family belong to me. The fruits of work are mine by right of labor, and I am their enjoyer, whether they be bitter or sweet. I am my own protector and maintainer. This woman is my wife, here is my brother he is my son. By the sweat of my brow I earn my own living. Success is the reward of my endeavors.' Intoxicated with egoism, these materialistic persons overestimate their ability and intelligence.

Because your mind and brain are intricately "hooked up," if your brain is stimulated in a particular place, it may cause certain forms, images, memories, and so on to come to the surface of your mind. These are then viewed by you. Your mind is the filing cabinet where all memories, desires, and so on are stored.
Science of Identity Foundation | Chris Butler Speaks

Scientists propagate their theories and develop technology to flaunt their denial of the Lord's omnipotence and even of the Lord Himself. Among atheists, these are the worst demons. They take credit for the so-called advancement of scientific technology and for the material comfort it brings. But factually, all is done by the Lord's will; this they conveniently forget.

"When the atheists hear of the glory of the holy name, they disbelieve it. Yet sometimes even they utter Krsna's holy name due to the pressure of social norms, but since this kind of chanting is bereft of faith, they never experience bliss. Such are the stereotyped ways of cheaters who make a mere show of religion. By repeating Krsna's name, even though in neglect, they earn a little piety, but they are deprived of the actual result of chanting: pure love of Godhead. The cause of their offensiveness is material engrossment. They are so captivated by the illusory potency that they are blinded, and it is extremely difficult for them to get free of their offensive condition. Only one who acquires a taste for pure devotional service becomes disgusted with material life; leaving it, He takes full shelter of the holy Name.