When released, "Dreaming" sold in excess of 42,000 copies in its first week to enter the chart and peak at number 13, one place below previous single, "Testify".

Michael Paoletta from Billboard felt the song "overflows with Philly-inspired beats and the soulful wailings of lead singer/diva supreme Heather Small.

"[1] Music Week wrote that Small "adds restraint to her soaraway vocals on this otherwise trademark, if unremarkable, track from their double platinum Best Of.

CD1 contains the Radio Edit, plus their unique live cover of the Gladys Knight & the Pips 1977 hit "Baby Don't Change Your Mind" recorded at the Jools Holland Special show in February 1998 and also there is an exclusive megamix of M People's biggest singles into a ten-minute montage.

The opening shot is of Small, standing motionless, holding a cup and wearing a black dress, looking out of an apartment window overlooking Paddington station and she seems to be daydreaming as she then picks up her keys and coat, leaves the flat and goes for a walk.

In the final bridge, Heather's image is superimposed on shimmery water and the shots quicken in pace and irregularity as the song progresses; fast forwarding and rewinding and changing from colour to black and white with unsteady movements.