The asymptotic behaviour of all positive solutions with small
initial data of a parabolic semi-linear equation of indefinite
type is analyzed. Though in same parameter ranges, the solutions
stabilize to a positive steady-state, in others, the solutions
blow-up in a finite time and their limiting profiles, after the
blow-up time, are described through the \emph{metasolutions} of
the associated sub-linear problem. As a result, metasolutions are
shown to play a crucial role in describing the dynamics of
parabolic equations in the presence of spatial heterogeneities.