We are not same and so does the other living being. In my school we have number of students studying, each one of them different from others. They have different liking, choices, mental abilities, still we know each other, depends on each other for school works and other stuffs. It is a temporary bonding that we establish knowing very clearly that we may get apart after certain time. We are social creatures with an inherent need for connection and belonging, leading to the formation of various bonds. To explain this natural phenomenon, Sanskrit have following to say ;
लोके प्रकृति भिन्नोस्मिन्न कश्चित् कस्यचित् प्रियः|
कार्यकारण संबन्धं वालुका मुष्टिवज्जगत् ||
Loke prakruti bhinnosminn kashchit kasyachit priyah. Kaaryakaarana sambandham vaalukaa mushtivajjagat.
Loke = inhabitants of the Earth.
Prakruti = nature.
Bhinnosminna = bhinno + asmin + na.
Bhinno = different.
Asmin = this.
Na = not.
Kashchit = whosoever, any body.
Kasyachit = some one else
Priyah = favourite, liking.
Kaaryakaarana = particular cause.
Sambandham = relationship. association.
Vaaluka = sand.
Mushtivajjagat = mushtiovat + jagat.
Mushtivat = inside one's fist, clenched hand.
Jagat = Earth.
i.e. All living beings in this world have different natures and they may not even like each other. In such a situation, their relationship with each other is due to some specific work or reason and it is as temporary as the sand held in the fist slips away.
The saying "sand held in the fist slips away" is a metaphor for how attempts to tightly control or hold onto something, whether it be a person, a relationship, or a situation, often lead to its loss or failure.
Some bonding are formed simply because individuals enjoy each other company and find pleasure in shared activities. Once the purpose ends the bonding also comes to an end. As in my school case, once the session is over we get to our own way. But till that time we remain bonded with trust faith and purpose. These type of temporary interactions can provide opportunities for learning, observation, and the development of social skills, even if they don't lead to long-term bonds.