worshippers have small intelligence

Men of small intelligence worship the demigods, and their fruits are limited and temporary. Those who worship the demigods go to the planets of the demigods, but My devotees ultimately reach My supreme planet.

The results achieved by the demigods' benedictions are perishable because within this material world the planets, the demigods and their worshipers are all perishable. Therefore it is clearly stated in this verse that all results achieved by worshiping demigods are perishable, and therefore such worship is performed by the less intelligent living entity. Because the pure devotee engaged in Krsna consciousness in devotional service of the Supreme Lord achieves eternal blissful existence that is full of knowledge, his achievements and those of the common worshiper of the demigods are different. The Supreme Lord is unlimited; His favor is unlimited; His mercy is unlimited. Therefore the mercy of the Supreme Lord upon His pure devotees is unlimited. (More...)

Persons engaged in the worship of demigods are not very intelligent, although such worship is indirectly offered to Me.

In effect, Krsna says, "Persons engaged in the worship of demigods are not very intelligent, although such worship is indirectly offered to Me." For example, when a man pours water on the leaves and branches of a tree without pouring water on the root, he does so without sufficient knowledge or without observing regulative principles. The process of watering a tree is to pour water on the root. Similarly, the process of rendering service to different parts of the body is to supply food to the stomach. The demigods are, so to speak, different officers and directors in the government of the Supreme Lord. One has to follow the laws made by the government, not by the officers or directors. Similarly, everyone is to offer his worship to the Supreme Lord only. That will automatically satisfy the different officers and directors of the Lord. The officers and directors are engaged as representatives of the government, and to offer some bribe to the officers and directors is illegal. This is stated in Bhagavad-gita as avidhi-pūrvakam. In other words, Krsna does not approve the unnecessary worship of the demigods. (More...)

In Bhagavad-gita it is clearly stated that there are many types of yajna performances recommended in the Vedic literatures, but actually all of them are meant for satisfying the Supreme Lord. Yajna means Visnu. In the Third Chapter of Bhagavad-gita it is clearly stated that one should work only for satisfying Yajna, or Visnu. The perfectional form of human civilization, known as varnasrama-dharma, is specifically meant for satisfying Visnu. Therefore, Krsna says, "I am the enjoyer of all sacrifices because I am the supreme master." However, less intelligent persons, without knowing this fact, worship demigods for temporary benefit. Therefore they fall down to material existence and do not achieve the desired goal of life. If, however, anyone has any material desire to be fulfilled, he had better pray for it to the Supreme Lord (although that is not pure devotion), and he will thus achieve the desired result. (More...)

Link to this page: https://prabhupadabooks.com/?qg=720