The Visnu-sahasra-nama prayers mention the Lord's name as sanat and sanatanatama. The Lord and the living entities are both qualitatively sanatana, or eternal, but the Lord is sanatana-tama or the eternal in the superlative degree. The living entities are positively sanatana, but not superlatively, because the living entities are apt to fall to the atmosphere of noneternity. Therefore, the living entities are quantitatively different from the superlative sanatana, the Lord.
(SRIMAD BHAGAVATAM-------2:7:5--------PURPORT).

Concerning pratah-smrti, remembrance of the Lord in the morning, in the early morning hours (known as brahma-muhurta) one should get up and immediately chant the Hare Krsna mantra, or at least "Krsna, Krsna, Krsna." In this way, one should remember Krsna. Some slokas or prayers should also be chanted. By chanting, one immediately becomes auspicious and transcendental to the infection of material qualities. Actually one has to chant and remember Lord Krsna twenty-four hours daily, or as much as possible:
smartavyah satatam visnur vismartavyo na jatucit
sarve vidhi-nisedhah syur etayor eva kinkarah
"Krsna is the origin of Lord Visnu. He should always be remembered and never forgotten at any time. All the rules and prohibitions mentioned in the sastras should be the servants of these two principles." This is a quotation from the Padma Purana, from the portion called Brhat-sahasra-nama-stotra.

(SRI CAITANYA CARITAMRTA-------2:24:331--------PURPORT).

The Lord sanctified the River Yamuna from the beginning of His transcendental pastimes in the world. While His father Vasudeva was crossing the Yamuna with the baby Lord Krsna for a safe place at Gokula on the other bank of the river from Mathura, the Lord fell down in the river, and by the dust of His lotus feet the river at once became sanctified. It is especially mentioned herein that Maharaja Pariksit took shelter of that particular river which is beautifully flowing, carrying the dust of the lotus feet of Lord Krsna, mixed with tulasi leaves. Lord Krsna's lotus feet are always besmeared with the tulasi leaves, and thus as soon as His lotus feet contact the water of the Ganges and the Yamuna, the rivers become at once sanctified. The Lord, however, contacted the River Yamuna more than the Ganges. According to the Varaha Purana, as quoted by Srila Jiva Gosvami, there is no difference between the water of the Ganges and the Yamuna, but when the water of the Ganges is sanctified one hundred times, it is called the Yamuna. Similarly, it is said in the scriptures that one thousand names of Visnu are equal to one name of Rama, and three names of Lord Rama are equal to one name of Krsna.
(SRIMAD BHAGAVATAM-------1:19:6--------PURPORT).

In Bhagavad-gita it is clearly said that yajna should be performed for Lord Visnu. Lord Visnu has one thousand popular, transcendental names, out of which one name is Yajna. It is clearly said that everything should be done for the satisfaction of Yajna, or Visnu. All other actions a person may take are only causes for his bondage. Everyone has to perform yajna according to the Vedic hymns. As stated in the Upanisads, fire, the altar, the auspicious full moon, the period of four months called caturmasya, the sacrificial animal, and the beverage called soma are necessary requisites, as are the specific hymns mentioned in the Vedas and composed of four letters. One hymn is as follows: asravayeti catur-aksaram astu srausad iti catur-aksaram yajeti dvabhyam ye yajamahah.
(SRIMAD BHAGAVATAM-------4:7:41--------PURPORT).

As he read the thousand names of the Lord, in due course the holy name of Lord Nrsimha appeared. When Caitanya Mahaprabhu heard the holy name of Lord Nrsimha, He became fully absorbed in thought.
The Caitanya-mangala, Madhya-khanda, describes this incident as follows: Srivasa Pandita was performing the sraddha ceremony for his father, and as is customary, he was hearing thethousand names of Lord Visnu. At that time Gaurahari (Lord Caitanya) appeared on the scene, and He also began to hear the thousand names of Visnu with full satisfaction. When He thus heard the holy name of Lord Nrsimha, Lord Caitanya became absorbed in thought, and He became angry like Nrsimha Prabhu in His angry mood. His eyes became red, His bodily hairs stood on end, all the parts of His body trembled, and He made a thundering sound. All of a sudden He took up a club, and people became greatly afraid, thinking, "We do not know what kind of offense we have now committed!" But then Sri Caitanya Mahaprabhu adjusted His thoughts and sat down on His seat.

(SRI CAITANYA CARITAMRTA-------1:17:91--------PURPORT).

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