Thermal Equilibrium Heat always flows from hotter regions into cooler regions. Energy carried by particle motions Radiation Energy is carried by photons. Convection Energy carried from hotter regions below to cooler regions above by bulk buoyant motions of the gas. Over time, heat will get conducted from the bowl up the handle and you will feel it heat up. If you hang on too long, it will become almost as hot as the candle flame and you will burn your fingers.
Conduction is inefficient as the density is too low.
Ultra-dense stars Conduction dominates energy transport.