Scientist display their intellectual energy & deny the existence of Supreme Energy…. but devotees worship Krishna as the greatest Scientist.
If an ordinary man does not eat, he will grow weak and die. Similarly, if a devotee does not taste the transcendental pastimes of Lord Chaitanya Mahaprabhu and Lord Krishna, he will gradually weaken and die spiritually.
It is the aspiration of a devotee that while he chants the Hare Krsna maha-mantra his eyes will fill with tears, his voice falter and his heart throb. These are good signs in chanting the holy name of the Lord.
Purport on Chaitanya Caritamrta Adi Lila 7.81
Everything that can be achieved by fruitive activities, penance, knowledge, detachment, mystic yoga, charity, religious duties and all other means of perfecting life is easily achieved by My devotee through loving service unto Me. If somehow or other My devotee desires promotion to heaven, liberation, or residence in My abode, he easily achieves such benedictions.
Persons who smell the aroma of Lord Krishna's lotus feet, carried by the air of Vedic sound through the holes of the ears, accepts Krishna's devotional service. The Lord is never separated from them.
I regard as great even the smallest gift offered by My devotees in pure love, but even great offerings presented by nondevotees do not please Me