Negativity is something that can be nasty when it's in place of the positive, the visible.
Here an amount of notes about negativity is necessary.
This illustrates the notion:
the negative part of cycle (bottom) is never played, but it is necessary as a rest and withdrawal. Otherwise the full cycle is mangled and suffers from foldover distortion.
The negative may not be very noticeable to many people. As in the example above, the negative does not manifest itself.
Just the same in life - a half-cycle of activity requires a half-cycle of rest. The active creates, the passive receives and becomes.
The trouble comes when the negative half-cycle is skipped. The "negative" can be automatically treated as "hurtful" and "exhausting" because of the social expectations of expressiveness. Basically just that habit of everyone telling everyone how they are, what they're doing, etc. etc. Releasing their being in words. Which automatically breaks restfulness, becoming. Telling what one is processing releases what one is processing, emptying one's being, denying rest, denying modesty (settling down of knowledge acquired).
When the negative half-cycle's missing, restlessness (and the amount of data to be processed) accumulates, locking in what's called stress. Finally the burnout comes, which is just the collapse into constant rest and gradual coming to peace with acquired knowledge.