Senzafine means (without end) and the person in the song sounds like someone who is trying to break free of their life or destiny and the male voice sounds like an malevolent force fighting against the will of female voice.

It is also represent the constant struggle between good vs bad that is inside of the man, the behaviour like a bipolarity better said.

Also is the constant struggle of a decision of life
prepared to live alone, make decisions for himself/herself

And, finally Mother is like a a figure who always has molded us to our destination
this song is trying to say is the feeling of failing, of not being what you want ... The self deception.