Pure attachment will unite us even at the expense of moral and religious duties (dharma).Destiny will sometimes bring us together and sometimes separate us.
(Sri Caitanya Caritamrta-----1:4:31-----translation).

We prepare our next life by our actual activities in the present life. A living entity is offered a particular type of body as a result of his action in the present body. These activities are taken into account by a superior authority known as daiva, or the authority of God. This daiva is explained in Bhagavad-gītā as the prime cause of everything, and in Śrīmad-Bhāgavatam it is stated that a man takes his next body by daiva-netreṇa, which means by the supervision of the authority of the Supreme. In an ordinary sense, daiva is explained as destiny. Daiva supervision gives us a body selected from 8,400,000 forms; the choice does not depend on our selection, but is awarded to us according to our destiny. If our body at present is engaged in the activities of Kṛṣṇa consciousness, then it is guaranteed that we will have at least a human body in our next life.
(Nectar of Devotion).

The friends of Nanda Mahārāja, all the cowherd men, became eager to know if Kṛṣṇa was actually the Supreme Personality and if He was going to give them all salvation. When they were all thus consulting among themselves, Kṛṣṇa understood their minds, and in order to assure them of their destiny in the spiritual kingdom, He showed them the spiritual sky.
(Krsna Book).

Although we appear combined together in a family, society or nation, each of us has an individual destiny. Everyone takes birth according to individual past work; therefore everyone must individually enjoy or suffer the result of his own karma. There is no possibility of improving one’s destiny by cooperative living. Sometimes it happens that one’s father accumulates wealth by illegal ways, and the son takes away the money, although it is hard-earned by the father, just as a small fish in the ocean eats the material body of a large, old fish. One ultimately cannot accumulate wealth illegally for the gratification of his family, society, community or nation. An illustration of this principle is that many great empires which developed in the past are no longer existing because their wealth was squandered away by later descendants. One who does not know this subtle law of fruitive activities and who thus gives up the moral and ethical principles carries with him only the reactions of his sinful activities. His ill-gotten wealth and possessions are taken by someone else, and he goes to the darkest region of hellish life. One should not, therefore, accumulate more wealth than allotted to him by destiny; otherwise he will be factually blind to his own interest. Instead of fulfilling his self-interest, he will act in just the opposite way for his own downfall.
(Krsna Book).

Although the brāhmaṇa friend of Lord Kṛṣṇa was a householder, he was not busy accumulating wealth for very comfortable living; therefore he was satisfied by the income which automatically came to him according to his destiny. This is the sign of perfect knowledge. A man in perfect knowledge knows that one cannot be happier than he is destined to be. In this material world, everyone is destined to suffer a certain amount of distress and enjoy a certain amount of happiness.
(Krsna Book).

There was a householder brāhmaṇa in the city of Mithilā, the capital of the kingdom of Videha. This brāhmaṇa, whose name was Śrutadeva, was a great devotee of Lord Kṛṣṇa. Because he was fully Kṛṣṇa conscious and always engaged in the service of the Lord, he was completely peaceful in mind and detached from all material attraction. He was very learned and had no desire other than to be fully situated in Kṛṣṇa consciousness. Although in the order of householder life, he never took great pains to earn anything for his livelihood; he was satisfied with whatever he could achieve without much endeavor, and somehow or other he lived in that way. Every day he would get the necessities of life in just the quantity required, and not more. That was his destiny. The brāhmaṇa had no desire to get more than what he needed, and thus he was peacefully executing the regulative principles of a brāhmaṇa’s life, as enjoined in the revealed scriptures.
(Krsna Book).