flow is a state where we discharge stimulus at the same rate at which we receive it. In a stable environment we naturally settle to this state over time. This is the essense of enjoyment. However in a rapidly changing environment we are more likely to persist in one of the following states...
fear is a state where we discharge stimulus at a lower rate than which we receive it. The mind is 'holding on' in order to process the information and discharge a response at a later time.
love is a state where we discharge stimilus at a faster rate than which we receive it. The mind is 'letting go'. This is the state which we naturally aim for, but cannot achieve continuously in life. Examples of this include prayer, meditation, falling in love, orgasm.
Our sense of time corresponds to the above states of experience. In flow we are entirely in the moment, there is no sense of passing time. In fear we experience the passing of time. In love, perhaps we experience a reversal.
Likewise, our level of entropy corresponds to these states. In flow there is no change. In fear, we reduce our entropy. In love, we increase it.
Similarly for energy the direction is reversed. In fear, energy is absorbed. In love, it is given.
etc.