Islam is a complete way of life. The righteous way that is chosen by ALLAH Almighty for Muslims to attain Jannah or Paradise. Being a selected way of life, ALLAH Almighty appointed and prescribed various festivals for Muslims to observe.
Man always wants and needs to socialize with other peoples in the society, and also observe communal gatherings that help bring back reminiscences of past events to help shape their future activities.
Please read the originial post here: https://cheapumrahpackagesblog.wordpress.com/2016/09/19/islam-and-the-festivals-of-eid/