One who is not in Kṛṣṇa consciousness usually cannot sit silently even for half an hour. The yoga system teaches that if you become silent you will realize that you are God. This system may be all right for materialistic persons, but how long will they be able to keep themselves silent? Artificially, they may sit down for so-called meditation, but immediately after their yogic performance, they will engage themselves again in such activities as illicit sex life, gambling, meat-eating and many other nonsensical things. But a Kṛṣṇa conscious person gradually elevates himself without endeavoring for this so-called silent meditation. Simply because he is engaged in Kṛṣṇa consciousness he automatically gives up all this nonsense and develops a high character. One develops the highest character by becoming a pure devotee of Kṛṣṇa. The conclusion is that no one can truly have any good qualities if he is lacking Kṛṣṇa consciousness. Happiness in Kṛṣṇa Consciousness
Śrīla Rūpa Gosvāmī has analyzed the different sources of happiness. He has divided happiness into three categories, which are: 1) happiness derived from material enjoyment, 2) happiness derived by identifying oneself with the Supreme Brahman, and 3) happiness derived from Kṛṣṇa consciousness.
In the Tantra-śāstra Lord Śiva speaks to his wife, Satī, in this way: "My dear wife, a person who has surrendered himself at the lotus feet of Govinda and who has thus developed pure Kṛṣṇa consciousness can be very easily awarded all the perfections desired by the impersonalists; and beyond this, he can enjoy the happiness achieved by the pure devotees."
Happiness derived from pure devotional service is the highest because it is eternal. But the happiness derived from material perfection or understanding oneself to be Brahman is inferior because it is temporary. There is no preventing one's falling down from material happiness, and there is even every chance of falling down from the spiritual happiness derived out of identifying oneself with the impersonal Brahman.
It has been seen that great māyāvādī (impersonalist) sannyāsīs—very highly educated and almost realized souls—may sometimes take to political activities or to social welfare activities. The reason is that they actually do not derive any ultimate transcendental happiness in the impersonal understanding and therefore must come down to the material platform and take to such mundane affairs. There are many instances, especially in India, where these māyāvādī sannyāsīs descend to the material platform again. But a person who is fully in Kṛṣṇa consciousness will never return to any sort of material platform. However alluring and attracting they may be, he always knows that no material welfare activities can be compared with the spiritual activity of Kṛṣṇa consciousness.
The mystic perfections achieved by actually successful yogīs are eight in number. Aṇimā-siddhi refers to the power by which one can become so small that he can enter into a stone. Modern scientific improvements also enable us to enter into stone because they provide for excavating so many subways, penetrating the hills, etc. So, aṇimā-siddhi, the mystic perfection of trying to enter into stone, has also been achieved by material science. Similarly, all of the yoga-siddhis, or perfections, are material arts. For example, in one yoga-siddhi there is development of the power to become so light that one can float in the air or on water. That is also being performed by modern scientists. They are flying in the air, they are floating on the surface of the water, and they are traveling under the water.