There is nothing in the world with which the Lord is disconnected. The only thing we must learn is to excavate the source of connection and thus be linked with Him by offenseless service. We can be connected with Him by the transcendental sound representation of the Lord. The holy name of the Lord and the Lord Himself are identical, and one who chants the holy name of the Lord in an offenseless manner can at once realize that the Lord is present before him.
His Divine Grace A. C. Bhaktivedanta Swami Prabhupada
Srimad-Bhagavatam 1.16.32–33, Purport

The materialistic philosophy, whether appearing in India or in a foreign country, is certainly a failure, because it is out of touch with reality.
Srila Bhaktisiddhanta Sarasvati Thakura
Amrita Vani

There is only one God. If there were more than one God, this material world would not be organized so well. If there were many competing independent Gods, they would decree different, conflicting material laws, each according to his own desire. Of this there is no doubt. Looking at the material world, an intelligent and thoughtful person cannot fail to accept the idea that it was created according to the will of a single Supreme Person.
Srila Bhaktivinoda Thakura
Tattva-viveka 1.21, Commentary

Those words describing the glories of the all-famous Personality of Godhead are attractive, relishable, and ever fresh. Indeed, such words are a perpetual festival for the mind, and they dry up the ocean of misery.
Sri Suta Goswami
Srimad-Bhagavatam 12.12.50

When a diseased eye is treated with medicinal ointment it gradually recovers its power to see. Similarly, as a conscious living entity cleanses himself of material contamination by hearing and chanting the pious narrations of My glories, he regains his ability to see Me, the Absolute Truth, in My subtle spiritual form.
Lord Sri Krishna
Srimad-Bhagavatam 11.14.26

The Lord desires to be the servant of anyone who desires to be the servant of the Lord.
Srila Vrindavana Dasa Thakura
Sri Chaitanya-bhagavata, Adi-khanda 17.25

His loosened hair crowned with a peacock feather and flowing over His shoulders, His handsome form bending in three places, and His feet crossing as He dances, merciful and charming Krishna plays His bamboo flute. Such is the Lord whom I worship.
Sri Narada Muni
Srila Rupa Goswami’s Padyavali