Blake uses 'innocence' as an 'equivocal term' and the songs in innocence exhibit an 'ambiguity of tone'
Harold Bloom
Nurse's Song (I) presents 'a paradise of intimate human connection and happiness'
Proto-Marxist reading 1: Nurse could be allowing herself and the children to return to nature as a response to the capitalist society that values work and disregards play, seen in the experience version.
Proto-Marxist reading 2: the children's rebellion against the Nurse is Blake's way of encouraging society to rebel against an industrialised society that prioritises work.