Detailed explanation about the words "all live is expansion, all love is contraction " said by swami vivekanandha
Answers
'Love is expansion and selfishness is contraction' is the famous line which has been quoted by our idol, Swami Vivekananda. He wants to convey that a person who loves is the one who has the ability to live. Also, he states that the one who is selfish is the one who meets death.
It is true that one should always spread love among all the people. Love can help in creating strong bondings and get every people by your side during hard times. However, for selfish people, they usually don't get help them as they only think about their own benefit and get their work done.
After the work gets done, these people forget it and hence next time onwards they need to fight their battles alone whereas people are also eager to help a person who spreads love and thus, he gets saved from many unforeseen circumstances and even death.