lukewarm

What does it mean to be lukewarm? Room temperature, lacking heat or cold.

To be room temperature means to be the temperature of the room. Typically the same as your surroundings.  To prevent being room temperature you need an added element; i.e. ice, a heating element, and an  insulation.  and these elements  must be continual. Otherwise, you will become room temperature.  If you take iced tea  and introduce it into a hot environment, the ice will melt and  it will eventually become hot tea.  On the other side, if you take hot chocolate outside into freezing weather, the heat will dissipate and then you will have cold chocolate.  But if you take the iced tea and hot chocolate  and allow it to become acclimated to a warm environment; they just become yucky warm drinks; neither hot or cold. 

Jesus is the element we must continually take in to retain our temperature, and the Holy Spirit is our thermos that allows us to endure.  When we sit stagnant we become lukewarm.... and that's just gross.

Read Rev 3:-15-16

Then read the book of John