We did not send you but as a mercy to all the nations.(Al Anbiya:107)
The Prophet of Islam, may God bless him and his family and grant him peace, is a mercy to the world.
The existence of Prophet Khatam is the reason for the happiness of two worlds of people. Because following the ritual and plan that he brought will end the failures, misfortunes, riots and all bad things, and will lead to the rule of the righteous with faith in the world.
Finally, following him bring us eternal blessings in the hereafter.