Emotion is fine. Emotion has colour, texture, shape. It is the response to an actual phenomenon. It is the sensory interface with the world.
Distinguish that from nervous system excitation: rage and fear.
Distinguish that from the bad smell of the ego that fills the room with itself.
If the feeling is genuinely enlightening about the world, if it is enlivening rather than enervating, if it is anonymous rather than declamatory, it is to be encouraged.
If it is the sole hero on the bright stage in a darkened theatre, if it is the stimulant rather than the food, if it is concerned chiefly with itself, it is to be stifled by oxygen deprivation.