It helps to prove the point that innocence is what you perceive to be innocent. At two days, one is hardly experienced, and has no worries. Therefore, when reading the 'Innocence' poems, don't think that they have a link to the 'Experience' poems.
The best-known work of the English poet and artist William Blake, Songs of Innocence and of Experience employs the mediums of poetry and colored engraving in a series of visionary poems "shewing the two contrary states of the human soul.
The bard may ask him to 'return' but that simple act of 'returning' will not erase his memory. The question at hand: could These two poems are meant to be interpreted in a comparison and contrast.
The second stanza expresses the human being's inevitable acceptance of his fate, though he can still ease his feeling by moping. In the Introduction to Innocence, Blake uses such symbols as the lamb and child to express his view of innocence.
On the contrary, "The Chimney Sweeper" in Songs of Experience, shows a completely different side of the coin, the experienced side. So much so, that he drops everything to write down his poems with materials that are close to him: a reed as a pen, and stain'd water as ink.
This somewhat 'ignorant' faith in god shows Tom's innocence.