Summary (Flow)

When experiencing Flow can be like ecstasy, ie another reality (get an effortless spontaneous feeling)
You can maximise Flow by
"... - choosing the right activity
     - setting clear goals
     - minimising distractions
Additionally, setting up a routine, practising mindfulness, and taking regular breaks can help you get the most out of your flow..."
Beata Souders, 2019

Furthermore,
"...a good activity for reaching flow is one that allows you to reach a clear goal, poses a sufficient challenge for your skills, and requires your full attention and concentration..."
Beata Souders, 2019

Organisations experiencing Flow are where employees feel deep engagement. This means that individuals are highly productive and are working at their best. 
"...employees are provided the opportunity to do what they do best in their organisation the benefits of higher productivity and lower turnover, as well as greater profit, customer satisfaction, and workplace safety. The level of engagement, involvement or degree to which employees are positively stretched contributes to the experience of well-being at work..."
Mihaly Csikszentmihalyi as quoted by Beata Souders, 2019

Furthermore,
"...The happiest people spend much time in a state of flow - the state in which people are so involved in an activity that nothing else seems to matter; the experience itself so enjoyable that people will do it even at great cost, the sheer sake of doing it..."
Mihaly Csikszentmihalyi as quoted by Beata Souders, 2019
"...flow promotes positive effect, creativity, concentration, learning, meaning and purpose in life, and a sense of transcendence connection with a greater whole..."
David Boniwell et al as quoted by Beata Souders, 2019

Neurochemical changes during Flow strengthen motivation, creativity, learning, intellectual and cognitive performance, etc ie
"...The brain produces a giant cascade of neurochemistry. You get norepinephrine, dopamine, anandamide, serotonin and endorphin. All five of these are performance enhancing neurochemicals..."
Steven Kotler as quoted by Beata Souders, 2019