What is another word for feeds the fire?
Pronunciation: [fˈiːdz ðə fˈa͡ɪ͡ə] (IPA) 
There are a variety of synonyms for the phrase "feeds the fire" depending on context. In a literal sense, stokes, adds fuel to, or kindles the flames may be appropriate. When discussing a figurative sense, such as in an argument or debate, perpetuates, intensifies, or exacerbates the issue can be used. If discussing motivation or inspiration, fuels, sparks, or ignites passion may be appropriate. Additionally, if discussing something that is successful or thriving, fuels growth, sustains progress, or contributes to momentum may work. Alternately, if discussing the negative impacts of something, such as addiction or destructive behavior, worsens the problem or perpetuates the cycle may be fitting.
