Gravitational fields may result from a distribution of masses.
A strength of a gravitational field of a (point mass) can be proportional to a value of a mass.
A scientist may publish a theory of gravitational interactions.
Gravitational fields can be equivalent to accelerations of a frame of reference.
Atmospheric tides may result from a gravitational attraction of the sun.
Gravitational attraction can be constituted-of-or-filled-with cosmic dust.