All living beings, humans, animals and plants are connected to each other in one way or other. Nature has made everyone different but to connect us all, nature has provided common language of love.
Language of love is understood by one and all. When someone calls a human by love they respond happily, on the other hand, if love is missing, anger takes its place and overrides the humanity.
Everyone speaks different language we cannot understand the language of birds and animals but language of love is understood by all.
Hence, love is the language of the universe and it is the language to communicate with God.

