Points are used to add words and connections to Englex. Your bank can only store a limited number of points, so spend them when you have them.
Points are replenished periodically throughout the day (the bar you clicked to arrive here gives an approximation for when the next payoff occurs).
Points are also replenished when certain social goals are reached.
Connections Earn Points
When particular thresholds are crossed, regarding the number of word connections, new points are distributed.
Next Target: 6000 Connections