i think speaking the same language is the best way to communicate with people, you can go in the details and understand exactly what he want to say but also i think the eyes can talk, your body your actions you can understand specifically emotions like respect , love, anger, hope

Definitely no. U don't need to speak a word (no matter what language) to be able to undersand and be understood. Feelings and body language are universal, althgough, speaking the same language does help.

It's essential, but it's not the only way to understand someone, reason why you can't understand sometimes your fellow co-patriot ! I think there are some mystical things beyond related to the souls, a connection that goes between people, a shared vision or thoughts ...

i think that for understanding someone speaking the same language is important however in many cases the best way to understand someone is to read his body ,face and specially his eyes it tells a lot of things he does not want to show or simply can not express with words it is the universal language which we all can speak.

no