Lightning trainin with nagato

[mandarina]

Okay
+i concentrate my raiton chakra into my hands..with great efficiency i surge a stream of lightning towards the rock*

 

[Nagato..]

Okay
+i concentrate my raiton chakra into my hands..with great efficiency i surge a stream of lightning towards the rock*

*Nothing happens*

Be a bit more descriptive please. Describe every detail as much as you can