What is the meaning of this beautiful Assamese song??!

Found this Assamese song in a video. I randomly found this song is stuck in my mind. It sounds really beautiful. Would anyone kindly provide it's meaning.i searched but couldn't find. And if possible also it's lyrics in a way I can read easily since I want to understand and remember this song. There are few more songs I found if it's not rude may I ask how to know a song is Assamese or Bengali if it sounds really similar for someone who doesn't know both languages.kindly don't misunderstand I'm interested to get to know more about sweet songs like these and understanding the beauty of languages. Thanks in advance🙏