116
Śrimad-Bhāgavatam
[Canto 8, Ch. 3]
kāmais tais tair hṛta-jñānāḥ prapadyante 'nya-devatāḥ:  those who are unintelligent approach the various demigods for temporary material benefits. Actually, however, these demigods cannot rescue the living entity from the dangers of material existence. Like other living entities, the demigods are merely external parts of the Supreme Personality of Godhead's transcendental body. As stated in the Vedic  mantras ,  sa ātmā aṅgāny anyā devatāḥ . Within the body is the  ātmā , the soul, whereas the various parts of the body like the hands and legs are external. Similarly, the  ātmā  of the entire cosmic manifestation is Nārāyaṇa, Lord Viṣṇu, and all the demigods, human beings and other living entities are parts of His body.
It may also be concluded that since a tree lives on the strength of its root and when the root is nourished with water all the parts of the tree are nourished, one should worship the Supreme Personality of Godhead, who is the original root of everything. Although the Supreme Personality of Godhead is very difficult to approach, He is very near to us because He lives within our hearts. As soon as the Lord understands that one is seeking His favor by fully surrendering, naturally He immediately takes action. Therefore although the demigods did not come to the aid of Gajendra, the Supreme Personality of Godhead immediately appeared before him because of his fervent prayer. This does not mean that the demigods were angry with Gajendra, for actually when Lord Viṣṇu is worshiped, all the other demigods are also worshiped.  Yasmin tuṣṭe jagat tuṣṭam:  if the Supreme Personality of Godhead is satisfied, everyone is satisfied.
yathā taror mūla-niṣecanena tṛpyanti tat-skandha-bhujopaśākhāḥ prāṇopahārāc ca yathendriyāṇāṁ tathaiva sarvārhaṇam acyutejyā
“As pouring water on the root of a tree energizes the trunk, branches, twigs and everything else, and as supplying food to the stomach enlivens the senses and limbs of the body, so simply worshiping the Supreme Personality of Godhead through devotional service automatically satisfies the demigods, who are parts of that Supreme Personality.” ( Bhāg.  4.31.14) When the Supreme Personality of Godhead is worshiped, all the demigods are satisfied.