Blynk.run() and timer.run() mean?

May I ask something very stupid, what does Blynk.run() and timer.run() mean?
I’m no experience about blynk and arduino.

Thank you

If I’m not mistaken and simplifying it a lot so that you understand it easily …
blynk.run, makes the necessary routines for communication with Blynk’s server …
timer.run executes the timers that you have defined.

Yes, basically what @trystan4861 said… with documentation…

http://docs.blynk.cc/#blynk-firmware-connection-management-blynkrun

http://playground.arduino.cc/Code/SimpleTimer