is it always necessary to use an object?

I am new at Unity, and I have the following problem:
I need to connect Neurosky with Unity, and I am trying to adapat the code given by neurosky. However, I realize that they use an object, wich I think It is not necessary for my code.
Perhaps you can help me. Thank you

You can very well code for Unity without the use of objects but the nature of Unity is that to exist within the ‘World’ requires an object. You can very well make things happen in the background unrelated to MonoBehaviours but if you wanted to interact with it, sooner or later you will require an object.